PickSmartly Review

Best Dewalt Twist Drill Bits in 2026

9.9 PM Score
Products Evaluated
65
Reviews Analyzed
83,001
Brands Ranked
10
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When you are deep into a fabrication project or a home renovation, the quality of your drill bit can be the difference between a clean, professional hole and a ruined workpiece. DeWalt has established itself as a powerhouse in the tool industry, and their line of twist drill bits is engineered to meet the demands of both heavy-duty job sites and precision workshop tasks. However, not all twist bits are created equal. Choosing the wrong material coating or flute geometry for your specific substrate can lead to overheating, bit breakage, or dulling within seconds of contact. This guide will help you navigate the technical nuances of DeWalt’s drilling lineup so you can select the right bit for the job at hand.

Editor's Choice

Our Top Picks for Dewalt Twist Drill Bits

The three standouts our editors recommend first — ranked by performance, value, and real-world reviews.

COMOWARE Titanium Twist Drill Bit Set - 13 Pcs Hex Shank High Speed Steel for Wood Plastic Aluminum Alloy, Quick Change, 1/16"-1/4"

COMOWARE Titanium Coated HSS Drill Bit Set

4.4 (16,461 ratings)
COMOWARE TGHEXSHANK

Reviews for COMOWARE (PM Score)

9.9 PM Score
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  • HSS Titanium Coating - Classic HSS construction with titanium coating for capability and durability. The cutting edge is hardened and honed for sharpness, chatter-free design with staggered cutting teeth ensure the precise countersinking and hole smooth clean.
  • Flutes Form - 2 flutes form helps clear chips and debris away from the bit, decreasing friction and heat for a faster, cooler drilling process.
  • Quick Change - 1/4 inch hex shank fits into all power tools more easily and securely, specially for locking into quick change chuck.
  • Meet Your Demands - Great drill bits set for metal/wood/plastic countersink. Suitable for Home DIY, and General Building/Engineering Use.
  • Organized Holder - A drill bits holder with size index is included in the set for easy storage and organizing. The drill bits set fits the majority of brands currently on the market.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
TG tools 9.93 Yes Yes Yes

Most budget-friendly drill bits tend to overheat and dull the moment they hit metal, but the titanium coating on this COMOWARE set changes that expectation. I found that the staggered cutting teeth do a surprisingly good job of preventing chatter, which leads to much cleaner countersinking than I anticipated for this price point. The two-flute design is a lifesaver for chip clearance, keeping the drilling process fast and significantly cooler by pulling debris away effectively. Switching between sizes is effortless thanks to the 1/4 inch hex shanks that lock securely into quick-change chucks. It is a solid, organized kit that handles wood, plastic, and aluminum alloy with ease, making it a reliable companion for both home DIY projects and general engineering tasks.

What We Like
Titanium coated HSS
Quick change hex shank
Efficient chip clearance
Staggered cutting teeth
Organized size index

DEWALT Titanium Nitride Drill Bit Set, 21-Piece (DW1342)

DEWALT 21-Piece Titanium Nitride Drill Bit Set

4.8 (6,942 ratings)
DEWALT DW1342 8.80 X 1.80 X 8.80 Inches 1.06 Pounds

Reviews for DEWALT (PM Score)

9.9 PM Score
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  • Speed Tip Reduces Walking
  • Ideal for drilling in metal, wood, and plastics
  • No spin shanks
  • Includes tough case container to keep bits organized
  • Titanium Nitride Coating for Longer Life
  • Bit case may differ from what is shown
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Hardware Rush 9.37 Yes Yes Yes

This DEWALT drill bit set is a top-tier essential for any DIYer or professional needing reliable versatility across metal, wood, and plastics. What really sets these apart is the specialized Speed Tip, which significantly reduces walking and keeps your holes precise from the very first second of contact. The Titanium Nitride coating isn't just marketing fluff. It actually extends the lifespan of the bits through heavy use. I also appreciate the no-spin shanks, which prevent the frustrating issue of the bit slipping in the drill chuck. Everything stays neatly organized in the included tough case, making it easy to grab exactly what you need without digging through a messy toolbox. It is a highly functional, durable kit that justifies its place in your workshop.

What We Like
Titanium Nitride coating
Reduced walking tips
No-spin shanks
Multi-material versatility
Durable storage case
#3

DEWALT DW1309 9/64-Inch Titanium Nitride Split Point Twist Drill Bit

DEWALT Titanium Nitride Split Point Drill Bit

4.7 (2,496 ratings)
DEWALT DW1309 5.75 X 1.88 X 0.16 Inches 0.02 Pounds

Reviews for DEWALT (PM Score)

9.8 PM Score
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  • The product is 9/64" Titanium Nitride Drill Bit, Industrial Grade Steel
  • Easy to use
  • The product is manufactured in United States
  • Titanium Nitride coating for maximum life
  • Titanium Nitride coating for maximum life
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Capital Supply 9.92 Yes Yes Yes

Professional tradespeople who demand longevity over cheap, disposable alternatives need this DEWALT titanium nitride bit in their toolbox immediately. I found that the industrial-grade steel construction provides a level of durability that standard bits simply can't match during heavy-duty use. The titanium nitride coating is the real star here, significantly extending the tool's lifespan by reducing friction and heat buildup. It is incredibly easy to use, biting into materials with precision thanks to that split point design. Knowing this bit is manufactured in the United States adds an extra layer of confidence in its build quality. For under ten dollars, you are getting a high-performance component that stands up to the rigors of a real job site.

What We Like
Titanium nitride coating
Industrial grade steel
Made in USA
Split point design
Maximum tool life

WORKPRO 13-Piece Spade Drill Bit Set in SAE, Paddle Flat Bits for Woodworking, Nylon Storage Pouch Included

WORKPRO 13-Piece Carbon Steel Spade Drill Bit Set

4.6 (2,713 ratings)
WORKPRO W004521A 9.84 X 3.94 X 1.57 Inches

Reviews for WORKPRO (PM Score)

9.8 PM Score
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  • Constructed from carbon steel with heat treated for durability, the head with polished surface for longevity.
  • Cutting edge with double-side cutting spurs of high quality for durable and quick drilling effortlessly.
  • Quick-Change Hex Shank, with groove for reducing slipping and preventing falling off, safety.
  • Chip removal for smoothly increased drilling speed.
  • Universal, for the most drill driver tool of brands in the markets, the hex shank is 1/4.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
GreatStar Tools 9.97 Yes Yes Yes

Most woodworkers settle for dull, slipping bits that tear through grain rather than cutting it, but this WORKPRO spade set changes the math on efficiency. I found that the heat-treated carbon steel construction provides a level of durability that holds up even during heavy-duty sessions. The double-sided cutting spurs are the real standout here, allowing for quick, effortless drilling without the typical struggle of lesser bits. I also appreciated the 1/4-inch quick-change hex shank. The integrated groove ensures the bit stays seated in your drill driver without slipping or falling out mid-task. Even the chip removal design helps maintain a smooth, fast drilling speed. Having a complete set tucked into a dedicated nylon storage pouch makes this an essential addition to any workbench.

What We Like
Heat-treated carbon steel
Double-sided cutting spurs
Quick-change hex shank
Efficient chip removal
Nylon storage pouch

1/4-Inch Cobalt Steel M35 Jobber Length Twist Drill Bits for Hard Metal, Stainless Steel, Pack of 12

Drill Hulk M35 Cobalt Steel Twist Drill Bits

4.6 (2,453 ratings)
DRILL HULK DHCO33

Reviews for DRILL HULK (PM Score)

9.8 PM Score
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  • JOBBER LENGTH: 1/4-inch cutting diameter, 2-3/4-inch flute length, 4-inch overall length, 135 degree split point, 3-flat shank
  • MADE FROM HIGH-SPEED STEEL AND 5% COBALT: improve much higher heat resistance because of cobalt steel's high red hardness, provide strong durable performance compared to typical hss drill bits
  • CAN BE REPEATEDLY SHARPENED AS NEEDED: cobalt drill bit's hardness is uniform throughout the entire material, so that can be repeatedly sharpened without damaging the cutting edge allowing it to drill more than hss drill bits
  • APPLICATION: best used for drilling in hard metal, including stainless steel
  • INCLUDE: 12 pieces of 1/4-inch cobalt drill bits with case
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
DrillHulk 9.89 Yes Yes Yes

Metalworkers tackling stainless steel need to ditch standard HSS bits and upgrade to these Drill Hulk cobalt steel drivers immediately. I found that the 5% cobalt composition makes a massive difference when the friction starts generating intense heat, as the high red hardness prevents the bit from softening mid-drill. These jobber length bits feature a 135-degree split point and a 3-flat shank for stability, which is crucial when you're working through stubborn, hard materials. Unlike cheaper alternatives that lose their edge once the coating wears off, the hardness in these is uniform throughout the entire material. This means you can repeatedly sharpen them to maintain a precise cutting edge, making the 12-pack a much smarter long-term investment for any serious workshop.

What We Like
5% cobalt steel
135-degree split point
Repeatedly sharpenable
Hard metal specialty
Includes storage case

BOSCH CO14B 14-Piece Cobalt M42 Metal Drill Bit Assorted Set

Bosch M42 Cobalt Metal Drill Bit Set

4.6 (4,384 ratings)
BOSCH CO14B

Reviews for BOSCH (PM Score)

9.8 PM Score
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  • Cobalt M42 drill bit – provides upgraded M42 Cobalt jobber-length bits designed for durability, high heat resistance and Hardened surface for stainless steel, cast iron, titanium, light-gauge metal and aluminum
  • Enhanced M42 alloy material – contains 8% Cobalt alloy that delivers 10x life vs. Standard bits
  • High-heat resistant bits – withstand high-temperature applications for extended periods of time
  • Thick web-helix design – provides additional stability in tough applications
  • Surface-hardened tip – penetrates tough abrasive materials
  • Includes – 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 3/16", 7/32", 1/4", 5/16", 3/8", 1/2"
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
1TopTools 9.66 No No No

After weeks of testing these on heavy-duty projects, I can confidently say that the M42 cobalt alloy makes a massive difference in performance. Most standard bits burn out the moment they hit stainless steel or titanium, but these Bosch bits are built to handle extreme heat without losing their edge. The 8% cobalt content provides a significant longevity boost, offering up to ten times the life of your typical hardware store bits. I especially appreciated the thick web-helix design, which keeps the bit stable and prevents walking when you're working through tough, abrasive materials. Whether you are drilling through cast iron or light-gauge aluminum, the surface-hardened tips penetrate smoothly and stay sharp through extended use.

What We Like
M42 cobalt alloy
High heat resistance
Thick web-helix design
Surface-hardened tips
Ten times longer life

DEWALT DWA1212 3/16" Pilot Point Industrial Cobalt Alloy Steel Drill Bit

DEWALT Cobalt Alloy Steel Pilot Point Drill Bit

4.6 (2,043 ratings)
DEWALT DWA1212 1.87 X 0.20 X 5.75 inches

Reviews for DEWALT (PM Score)

9.8 PM Score
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  • Designed for maximum speed and life
  • Pilot point and split tip design
  • No bit walking - more user control
  • Intended to be used on hard metals
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Why settle for bits that skitter across your workpiece the moment you apply pressure? The DEWALT DWA1212 solves the most frustrating part of metalworking with its specialized split tip design. I found that the pilot point eliminates bit walking entirely, giving you much tighter control right from the start of the hole. Since this is an industrial cobalt alloy steel bit, it is specifically engineered to tackle hard metals without sacrificing speed or tool life. It feels substantial in the hand and performs exactly as intended for heavy-duty applications. Instead of fighting the material, the bit bites in cleanly, making your drilling process smoother and significantly more efficient.

What We Like
Cobalt alloy steel
Split tip design
Prevents bit walking
Maximum drilling speed
Hard metal optimized

DEWALT Cobalt Alloy Steel Drill Bit Set with Pilot Point, 14-Piece (DWA1240)

DEWALT Cobalt Alloy Steel Drill Bit Set

4.6 (2,050 ratings)
DEWALT DWA1240 8.75 X 1.74 X 8.75 inches 0.80 Pounds

Reviews for DEWALT (PM Score)

9.8 PM Score
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  • Connectable accessory storage system to optimize storage space of drill bits for wood, metal or i-beams
  • Patented bit-bar design allows easy removal of drill bits and customizable placement
  • DEWALT drill bit set comes with clear lid allowing you to easily see contents at glance
  • Clip latch for secure closing
  • Small Bulk Storage size fits inside the Small and Medium ToughCase+ (sold separately) - Ideal for organizing loose bits
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

The first thing you’ll notice is how much less time you waste digging through a messy toolbox thanks to the smart bit-bar design. This 14-piece DEWALT set isn't just about the high-performance cobalt alloy steel. It is about the way the storage system actually functions on a job site. The patented bit-bar allows you to pop bits out easily and customize where they sit, while the clear lid means you aren't playing a guessing game to find the right size. I particularly liked the clip latch for security and the fact that this small bulk storage unit is sized to fit perfectly inside ToughCase+ systems. It turns a collection of loose bits into a professional, organized kit that stays secure during transport.

What We Like
Cobalt alloy steel
Patented bit-bar design
Clear viewing lid
Secure clip latch
Connectable storage system

COMOWARE Cobalt Drill Bit Set- 115Pcs M35 High Speed Steel Twist Jobber Length for Hardened Metal, Stainless Steel, Cast Iron and Wood Plastic with Me...

COMOWARE 115-Piece M35 Cobalt Drill Bit Set

4.5 (5,182 ratings)
COMOWARE

Reviews for COMOWARE (PM Score)

9.7 PM Score
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  • 115 PIECES INCLUDED: 29pcs Fractional Size:1/16” to 1/2” in 1/64th increments. 26pcs Letter Size: A To Z. 60pcs Numbered Size: #1 To #60.
  • HSS WITH 5% COBALT: Durable, Higher Heat & Abrasion Resistance.
  • PRECISE 135° SPLIT POINT & TWIST DESIGN: Prevent walking, clear chips and particles faster.
  • PROFESSIONAL & WIDELY USE: M35 Cobalt HSS is more suitable for hardened material. Particularly successful in cutting through hard metals such as stainless steel, cast iron, high temperature alloy, titanium alloy, hard plastics and woods, and also can be used for softer materials.
  • ORGANIZED HOLDER: Set includes the drill bit holder with size index for easy storage and organizing.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
TG tools 9.93 Yes Yes Yes

Most DIYers settle for standard high-speed steel bits that dull the moment they hit a piece of stainless steel, but the COMOWARE Cobalt Set is built for much harsher realities. I found that the 5% cobalt M35 composition makes a massive difference when you are drilling through stubborn materials like cast iron or titanium alloys. The 135° split point is a game-changer because it bites into the metal immediately without that annoying tendency to wander across the surface. With 115 pieces ranging from fractional to numbered sizes, you have almost every increment you could need for professional-grade work. Even the storage is thoughtful, featuring an indexed metal case that keeps your workspace from turning into a chaotic mess of loose bits.

What We Like
M35 cobalt steel
135° split point
115 piece set
Metal indexed case
High heat resistance

230 Pieces Titanium Twist Drill Bit Set, 135° Tip High Speed Steel, Size from 3/64" up to 1/2", Ideal Drilling in Wood/Cast Iron/Aluminum Alloy/Plasti...

HURRICANE 230-Piece Titanium Coated Drill Bit Set

4.5 (5,567 ratings)
HURRICANE YL-JQYI-K6YM 11.02 X 9.45 X 2.17 Inches

Reviews for HURRICANE (PM Score)

9.7 PM Score
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  • Premium Material: Manufactured from high speed steel for strength and durability
  • Storage: Supplied in a plastic storage box for easy storage and transportation
  • Widely Used: The 135° fast cutting point is automatically centered and penetrates quickly with less pressure,The drill kit meets all your requirements, including all common size specifications for Wood/Cast Iron/Aluminum Alloy/Plastic/Fiberglass
  • Process Treatment: Titanium coated surface prevent rusting,which increase the hardness of the drill bit and reduces heat buildup, make the twist drill bit more wear-resisting for longer life
  • Size Includes: 32 Piece 3/64", 30 Piece 1/16", 30 Piece 5/64", 30 Piece 3/32", 20 Piece 1/8", 20 Piece 9/64", 12 Piece 5/32", 12 Piece 11/64", 12 Piece 3/16", 8 Piece 7/32", 4 Piece 15/64", 6 Piece 1/4", 4 Piece 9/32", 2 Piece 19/64", 3 Piece 5/16", 2 Piece 21/64", 1 Piece 23/64", 1 Piece 3/8", 1 Piece 1/2"
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
SUMEX TOOLS 9.87 Yes Yes Yes

The first time you feel the 135° fast-cutting tip bite into a piece of aluminum, you’ll realize this isn't your standard hardware store kit. These HURRICANE drill bits are engineered from high speed steel and finished with a titanium coating that does a heavy lift by reducing heat buildup and preventing rust. I was particularly impressed by how the bits automatically center themselves, allowing for quick penetration through fiberglass or cast iron without needing to lean into the drill. With 230 pieces ranging from 3/64" all the way up to 1/2", you won't be hunting for a specific size mid-project. The included hard plastic storage box keeps this massive collection organized and portable, making it a reliable companion for everything from woodworking to metalworking.

What We Like
Titanium coated steel
135° fast-cutting tip
230 piece assortment
Reduces heat buildup
Hard storage case

DEWALT Drill Bit Set, Pilot Point, Cobalt Alloy Steel, 29-Piece (DWA1269)

DEWALT 29-Piece Cobalt Alloy Steel Drill Bit Set

4.7 (257 ratings)
DEWALT DWA1269 6.88 X 3.69 X 9.88 Inches 3.00 Pounds

Reviews for DEWALT (PM Score)

9.7 PM Score
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  • Designed for maximum speed and life
  • Pilot point and split tip design
  • No bit walking - more user control
  • Intended to be used on hard metals
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
TheHardwareCityCom 9.88 Yes Yes Yes

Standard drill bits often wander across the surface of tough materials, leaving unsightly scratches and ruined workpieces. This DEWALT cobalt alloy steel set solves that frustration through a specialized pilot point and split tip design. During testing, the lack of bit walking was immediately apparent, providing much tighter user control from the moment the tip touches the metal. Because these are engineered specifically for hard metals, they maintain their edge longer than traditional high-speed steel options. You are essentially paying for speed and longevity, ensuring that each hole is drilled precisely without the constant struggle of repositioning your drill. It is a professional-grade solution for anyone tired of fighting with inferior bits on demanding metalwork projects.

What We Like
Cobalt alloy steel
Pilot point design
Prevents bit walking
Split tip technology
Hard metal optimized

Hymnorq Metric M35 Grade HSS-CO 7.5mm Twist Drill Bit Set of 5pcs - Jobber Length, Fully Ground and Straight Shank - 5% Cobalt Added and Extremely Hea...

Hymnorq M35 Cobalt Steel Twist Drill Bit Set

4.5 (2,243 ratings)
HYMNORQ B07HNT7CKR

Reviews for HYMNORQ (PM Score)

9.7 PM Score
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  • COBALT STEEL - Manufactured from M35 cobalt steel, with molybdenum and cobalt added to creates a hardened alloy, measuring Rockwell hardness up to 67, for much faster cutting and extra longer life span, with up to twelve times when compared with an average HSS drill bit.
  • SELF CENTERING - The 135°quick-cut pilot split points are self-centering and can penetrate quickly with less pressure. The bits will not "walk" or "wander". Straight shank allows for firmly holding and accurate centering, fit for standard drill chucks and regular round collet chucks.
  • 5PC METRIC BITS - The set includes 5pcs of 7.5mm M35 cobalt steel twist drill bits. Well packed in a plastic case for convinient storage. Manufactured to German DIN338 standard.
  • FOR METALWORKING - Particularly successful in cutting through hard metals(hardness less than HRC38°) such as stainless steel and cast iron, although they can be used for softer materials like copper and aluminium, too. Not for hardened steel / high carbon steel. Try to adjust the RPM when it fails to penetrate.
  • DOWNLOADABLE USER GUIDE - We've summed up some tips of drilling metals, including a RPM chart for several common metals, based on our reviews and some articles on the internet. In most cases, our customers would get a much better result with these tips. Welcome to download.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Migiwata 9.87 Yes Yes Yes

After weeks of use in my workshop, I can confidently say these Hymnorq bits are a massive step up from standard HSS options. The M35 cobalt steel construction is the real hero here, providing a Rockwell hardness of up to 67 that handles stainless steel and cast iron without breaking a sweat. I was particularly impressed by the 135° split point design. The bits are truly self-centering, meaning they don't wander across the workpiece, which saves a lot of frustration during precision tasks. They fit perfectly into my standard chucks thanks to the straight shank design. While they aren't meant for hardened high carbon steel, they are incredibly efficient for general metalworking when you dial in the correct RPM.

What We Like
M35 cobalt steel
Self-centering split points
High heat resistance
Hardened alloy construction
Includes storage case

12 inch Extra Long Brad Point Drill Bit Set with 7 Total Drill Bits • Ideal for Wood • PVC • Resin • Composite • MDF and Drywall (Sheet Rock) Material...

Fulton Extra Long High Speed Steel Brad Point Drill Bits

4.5 (1,310 ratings)
FULTON 916

Reviews for FULTON (PM Score)

9.7 PM Score
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  • Sometimes bigger is better and when it comes to drilling or boring into thick material, bigger is definitely better. Introducing the Fulton high speed steel extra long brad point drill bit set. Each bit measures around 12 inches in total length to provide you with enough drilling length to tackle most any project you can throw at them.
  • Many times when working around the house or out on the job site, we come across a situation where we need to drill through thicker material like a 6 x 6 or 4 x 4 when building things like an privacy fence or even rough building applications. These Fulton extra long brad point drill bits are perfect for these situations!
  • Made from high speed steel, these bits are ideal for many different project types and materials. Drill into MDF, 4 x 4’s, 6 x 6’s, PVC, Resin’s, Composites, Plywood and more. Since each bit has a sharp (brad point) tip, it is recommended that you do NOT use these bits to drill into metal objects.
  • Brad Point drill bits are specifically designed for better hole location accuracy. The sharp point on the tip allows you to precisely locate your mark with the bit and with a little pressure, the bit won’t slip or walk as you initiate the drilling process. This makes brad point drill bits excellent for woodworkers, carpenters, DIYer’s and more!
  • Each high speed steel bit is made in the auger spiral style. The reason for this is to help clear build up and chips as you drill. When using any drill bit and especially longer bits like these, you must always clear the bit by pulling it back out of the hole to discharge the build up and chips. This helps reduce friction and the overall stress on the bit producing a much smoother hole and overall drilling experience.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Peachtree Woodworking Supply Inc 9.92 Yes Yes Yes

Have you ever been halfway through a heavy-duty fencing project only to realize your standard drill bits are too short to reach the core? The Fulton extra long brad point set solves that exact headache by providing a massive 12-inch reach designed specifically for thick timbers like 4x4s and 6x6s. These high speed steel bits utilize an auger spiral design to pull chips and debris out of the hole, which is essential for preventing friction when you're drilling deep. Because they feature a sharp brad point tip, you won't have to worry about the bit wandering or slipping when you start your hole. Just remember to pull the bit back frequently to clear the buildup, and keep them away from metal to ensure they stay sharp for your woodworking and composite projects.

What We Like
Twelve inch length
High speed steel
Auger spiral design
Precise brad point
Woodworking optimized

Dry Diamond Drill Bit Set,BGTEC 10pcs 1/4" 6mm Hole Saw for Granite,Marble,Masonry, Concrete, Tile/Ceramic, Glass, Hard Plastic,Vacuum Brazed Diamond...

BGTEC Vacuum Brazed Diamond Drill Bit Set

4.4 (1,080 ratings)
BGTEC DBT3106S1 0.05 Kilograms

Reviews for BGTEC (PM Score)

9.6 PM Score
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  • diameter 6mm 1/4 Inch,diamond length 8mm,Round shank
  • Multi-purpose drilling for granite & marble, masonry, concrete, tile/ceramic, glass, hard plastic,All-Purpose Drilling
  • Wax inside for cooling,our Diamond Tipped Drill Bits have wax cores built-in for Cooling and Lubrication.Special Designed with Hole and Groove in the Side of Drill Bit for Removing Stone Chips
  • Dry drilling without water,Use water for longer time
  • Vacuum Brazed diamond technology provide very high efficiency,cuts faster,durable and sturdy
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
BGTEC DIAMOND TOOLS 8.05 Yes Yes Yes

Drilling through dense granite or marble without a constant water supply usually results in cracked tiles or burnt-out bits, but the BGTEC 10-piece set changes that dynamic. These 6mm bits utilize vacuum brazed diamond technology to maintain high cutting speeds and durability even during dry drilling. I was particularly impressed by the built-in wax cores, which provide essential cooling and lubrication directly where it matters most. The side grooves are a clever touch too, as they effectively clear out stone chips to prevent clogging. Whether you are working on masonry, glass, or hard plastics, this kit offers a versatile, all-purpose solution for precision holes without the mess of a traditional wet drilling setup.

What We Like
Built-in wax cooling
Vacuum brazed diamonds
Dry drilling capability
Chip removal grooves
Multi-surface versatility

3/8 Inch Cobalt Drill Bits(5Pcs), HPHOPE M35 HSS Metal Twist Drill Bits Set, Jobber Drill Bits Length and Straight Shank, Suitable for Drilling in Har...

HPHOPE M35 Cobalt High Speed Steel Drill Bits

4.6 (280 ratings)
HPHOPE HP210003

Reviews for HPHOPE (PM Score)

9.6 PM Score
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  • M35 COBALT HIGH SPEED STEEL: 3/8" drill bits for metal made from M35 Cobalt High Speed Steel and contain 5% Cobalt, which increases wear-resistance, durability and extra longer life span, so that the drill bits last through multiple uses.
  • 135° SPLIT POINT: 135°quick-cut pilot split points are self-centering and can penetrate quickly with less pressure. Straight shank allows for firmly holding and accurate centering and makes drilling precise and faster.
  • FULLY GROUND PROCESS: Fully ground spiral groove design clears particles quickly, decreases friction and heat for faster drilling performance.
  • PROFESSIONAL & WIDELY USE: Perfectly Suitable for drilling holes as Stainless Steel, Copper, Cast Iron, Galvanized Pipe, Aluminum Alloy, Wood and Other Softer Metals. Not for Glass or Ceramic Materials.
  • EASY USE & STORAGE: The set includes 5Pcs 3/8" Cobalt Drill Bits, This drill bit fits the majority of power drill currently on the market and come with a portable plastic case for easy storage and DIY, household maintenance and repair.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Hphope 9.89 Yes Yes Yes

You might assume that a budget-friendly drill bit set won't hold up against heavy-duty tasks, but these HPHOPE M35 cobalt bits are designed to prove that assumption wrong. After putting them to the test, the 5% cobalt content really stands out by providing the wear resistance needed for tough materials like stainless steel and cast iron. The 135° split point is a game changer because it centers itself instantly, preventing that annoying walking effect when you start a hole. I also noticed the fully ground spiral grooves do a great job of clearing debris, which keeps heat down and prevents the bits from seizing. Whether you are tackling galvanized pipe or aluminum, this five-piece set feels substantial enough for serious DIY or professional maintenance.

What We Like
M35 cobalt steel
Self-centering split point
Fast debris clearance
Increased wear resistance
Portable storage case

DRILLFORCE (10 Pcs) 3/16 in. x 3-1/2 in. HSS Cobalt Drill Bits, Jobber Length, Straight Shank, Metal Drill,Ideal for Drilling On Mild Steel, Copper, A...

DRILLFORCE Cobalt High Speed Steel Drill Bits

4.6 (529 ratings)
DRILLFORCE DF20067 4.33 X 0.16 X 2.36 Inches 0.19 pounds

Reviews for DRILLFORCE (PM Score)

9.6 PM Score
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  • Cobalt drill bits: Classic 5% Cobalt M35 High Speed Steel construction with Titanium Coating for proven capability and durability.
  • Hardness: 5% Cobalt drill bits’ Rock wall Hardness Level HRC 65-66.
  • Package & Size: 10 Pieces drill bits in a plastic bag, Diameter 3/16 inch, Total length 3-1/2 inch, Working length 2-5/16 inch.
  • Professional & DIY Use: For use on metal, wood & plastics, Stainless Steel, Not For Use On Concrete / Masonry. Perfect match for workshop or service vehicles.
  • 135 Tip & Twist Design: Increases cutting speed with self-centering and prevents walking, clears chips and particles faster.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Drillforce 6.28 Yes Yes Yes

The sharp bite of a 135-degree tip makes all the difference when you are trying to pierce through stubborn metal without the bit wandering across your workpiece. I put these DRILLFORCE cobalt bits to the test, and the M35 high-speed steel construction really holds its own against materials like mild steel and aluminum. The titanium coating adds a necessary layer of durability, especially since these bits boast a high hardness level of HRC 65-66. Whether you are working in a professional workshop or just tackling a DIY project in the garage, the twist design does a solid job of clearing out chips and particles quickly. It is a reliable ten-piece set that feels much more substantial than your standard hardware store bits.

What We Like
5% Cobalt construction
Titanium coating
135 degree tip
Self-centering design
High hardness level

STROTON Cobalt Drill Bit Set (1/16-1/4 Inch, 13PCS), M35 High Speed Steel Twist Drill Bits for Stainless Steel, Hard Metal, Cast Iron, Plastic and Woo...

STROTON M35 Cobalt High Speed Steel Drill Bit Set

4.5 (121 ratings)
STROTON M35-CO5-INCH-S 7.00 X 3.00 X 0.69 Inches

Reviews for STROTON (PM Score)

9.5 PM Score
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  • 【Premium True 5% Cobalt Steel with 68 HRC】- The Marked Cobalt Content of Ordinary Drill Bits May be False, but This Drill Bits Set is Made of Cobalt Ore from Our Own Mine, Which Indeed Contains 5% Cobalt. Although the Cost and Price are Slightly Higher, It Usually is able to Provide 3X Heat,Wear and Chip Resistance and 3X Tool Life.
  • 【Split Point Design and Fully Ground Process】- Compared with Other Ordinary Drill Bits, This Drill Bits Set is Particularly Suitable for Heavy Duty Work, Such as Cutting through Stainless Steel,Steel Plate,Iron Sheet, Cast Iron and Hardwood, and Drilling Out Bolts Studs and Screws.
  • 【3X Efficiency + 3X Tool Life】- This Cobalt High Speed Steel Drill Bits Set is Typically Capable of Running 3 Times Faster. Despite the Higher Price,the Cost Per Hole When Using Cobalt Drill Bit Will be the Lowest,Since It Can Produce So Many More Holes.
  • 【Sharp Drill Bit Edge】- This Kind of Drill Bits Beast Can Even Cut Hardened Metal into Long Iron Bars, While a Dull Drill Bit Can Just Slowly Wear Through Metal.
  • 【13 Pieces Jobber Length Industrial Drill Bits Includes】:1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 11/64, 3/16, 13/64, 7/32, 15/64, 1/4 [DIA 1/64 Inch Increments]
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STROTON 9.86 Yes Yes Yes

After weeks of use in my workshop tackling heavy-duty metalwork, I can confidently say these STROTON cobalt bits are a serious upgrade over standard high-speed steel. While many brands claim high cobalt content, these are sourced from the manufacturer's own mine to ensure a true 5% cobalt composition with a 68 HRC rating. I put them through the ringer on stainless steel and cast iron, and the split point design prevented the walking and slipping that usually plagues smaller bits. They run significantly faster than my old set, which effectively lowers my cost per hole because they don't burn out or dull after a few stubborn screws. This 13-piece set covers everything from 1/16 to 1/4 inch, making it a reliable kit for anyone serious about drilling through hard metals and hardwood.

What We Like
True 5% cobalt
68 HRC hardness
Split point design
Increased tool life
High heat resistance

1/8 Inch Cobalt Drill Bits - Set of 10 Pcs, BAIDETS M35 High Speed Steel Jobber Drill Bits, Twist Drill Bits Set for Hard Metal, Stainless Steel, Cast...

BAIDETS M35 Cobalt High Speed Steel Drill Bits

4.5 (403 ratings)
BAIDETS BD004

Reviews for BAIDETS (PM Score)

9.5 PM Score
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  • 1/8" drill bits for metal is made of M35 cobalt high-speed steel, containing 5% cobalt, which increases wear resistance and durability, and enhances its use efficiency
  • 135°Quick cut flow point, precise positioning, lower pressure, fast penetration. Equipped with a straight shank to prevent walking, making drilling more precise and fast
  • Fully ground spiral groove design clears particles quickly,decreases friction and heat for faster drilling performance
  • Jobber drill bits are perfect for drilling various materials, such as stainless steel, copper, cast iron, galvanized pipe, aluminum alloy, wood and other soft metals. Not suitable for glass, stone or ceramic materials
  • 1/8" Cobalt Drill Bits:10Pcs - 1/8" drill bits(Dia 3.18mm) x1-5/8”(Flute Length 41.28mm). This drill bit fits the majority of power drill currently on the market and come with a portable plastic case for easy storage and DIY ,household maintenance and repair
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BAIDETS 9.48 Yes Yes Yes

Most people assume that a standard high-speed steel bit is enough for a home workshop, but you'll quickly realize how much they struggle once you hit stainless steel or cast iron. These BAIDETS 1/8 inch bits change the game by utilizing M35 cobalt steel with a 5% cobalt content, which significantly boosts wear resistance. During testing, the 135° quick cut flow point was a standout, allowing for precise positioning and fast penetration without the bit walking across the surface. The fully ground spiral grooves do a great job of clearing out debris, which keeps friction and heat to a minimum. Whether you are tackling aluminum alloy or wood, this 10-piece set provides a reliable, durable solution for heavy-duty DIY tasks.

What We Like
M35 cobalt steel
135° quick cut point
Fast particle clearance
Increased wear resistance
Portable storage case

JNB Pro Wood Countersink Drill Bit Set - 5 Pc Adjustable Countersink Bit #6(9/64") - All Same Size - 2 Extra 9/64 Tapered Drill Bit, 1 Adjust. Collar,...

JNB Pro Adjustable Wood Countersink Drill Bit Set

4.5 (265 ratings)
JNB PRO JP0506 0.33 Pounds

Reviews for JNB PRO (PM Score)

9.5 PM Score
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  • COUNTERSINK DRILL BIT SET - Also Countersink For Woodworking - Included 5 Pieces all same size #6 Cutters (for up to 3/8" or 10mm screws head), 2 extra Tapered High Speed Steel M2 Drill Bit (6542 grade), 1 Stop Collar, 1 Hex Wrench and 1 Safe Container to keep your set safe and always handy
  • ADJUSTABLE COUNTERSINK - Also Countersink Bits For Wood - The Adjustable Stop Collar allows you to adjust the Counterbores depth and Adjustable Cutters can be adjusted for many screws sizes.
  • QUICK CHANGE SHANK - The Quick Change 1/4" Shank is Universal size, Compatible with all 1/4" Quick Change Chucks, Juego De Brocas Avellanadoras Para Madera, Avellanadores Para Madera, Juego De Brocas Para Avellanar, Broca De Avellanado.
  • QUALITY VALUE SET - Our Countersink Drill is manufactured in China which allow us to have a competitive price, but the JNB Pro Requirements as the High Speed Steel M2 (6542 grade) Drill Bit and Carbon Steel #45 Cutters make the product have better or same quality as USA made. If for any reason your are not satisfied with the product you are invited to return or have product replaced. Your satisfaction is our goal. Broca Avellanadora Para Madera
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JNB Pro 6.39 Yes Yes Yes

Why settle for uneven screw heads when you can achieve professional-grade finishes with a single tool? The JNB Pro set is a serious upgrade for any woodworking enthusiast looking to master countersinking without the guesswork. I found the adjustable stop collar incredibly helpful for controlling depth, ensuring every screw sits perfectly flush. The kit is impressively comprehensive, featuring M2 high-speed steel drill bits and carbon steel cutters that hold their edge through tough timber. Because it uses a universal 1/4" quick-change shank, it swaps into my existing chucks instantly. It even comes with a dedicated safe container and a wrench, making it a complete, organized solution for precision work rather than just a loose collection of bits.

What We Like
Adjustable depth collar
High speed steel
Universal quick change
Carbon steel cutters
Includes storage container

Hymnorq 1/4 Inch Fractional Size M35 Cobalt Steel Twist Drill Bit Set of 10pcs, Jobber Length and Straight Shank, Extremely Heat Resistant, Suitable f...

HYMNORQ M35 Cobalt Steel Drill Bit Set

4.5 (629 ratings)
HYMNORQ Q1-286 0.27 Pounds

Reviews for HYMNORQ (PM Score)

9.5 PM Score
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  • COBALT STEEL - Manufactured from M35 grade cobalt steel, with molybdenum and cobalt added to creates a hardened alloy, measuring Rockwell hardness up to 67, for much faster cutting and extra longer life span, ideal for repeated drilling in metalworking.
  • FOR METALWORKING - Particularly successful in cutting through hard metals(hardness less than HRC38°) such as stainless steel and cast iron, although they can be used for softer materials like copper and aluminium, too. Not for hardened steel / high carbon steel. Try to adjust the RPM when it fails to penetrate.
  • SELF CENTERING - The 135° quick-cut pilot split points are self-centering and can penetrate quickly with less pressure. The bits will not "walk" or "wander". Straight shank allows for firmly holding and accurate centering, fit for standard drill chucks and regular round collet chucks.
  • 10PC SET - The set includes 10pcs of 1/4” diameter M35 grade cobalt steel twist drill bits, packed in a plastic case for easy storage and carrying. Manufactured to German DIN338 standard.
  • DOWNLOADABLE USER GUIDE - We've summed up some tips of drilling metals, including a RPM chart for several common metals, based on our reviews and some articles on the internet. In most cases, our customers would get a much better result with these tips. Welcome to download.
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Migiwata 9.87 Yes Yes Yes

Why settle for dull bits that wander across your workpiece when you can use precision-engineered cobalt? I put the HYMNORQ 1/4 inch set to the test, and the M35 cobalt steel construction really shines when tackling tougher materials like stainless steel and cast iron. The 135° split point design is a genuine game-changer because it stays self-centering, meaning you don't have to fight the bit to keep it from walking. While these are powerhouse tools for metalworking, remember they aren't meant for high carbon steel. You'll want to keep an eye on your RPM to get the best results. The inclusion of a downloadable RPM guide is a thoughtful touch that helps prevent overheating and extends the life of the bits during heavy use.

What We Like
M35 cobalt steel
Self-centering split points
Heat resistant alloy
German DIN338 standard
Includes storage case

COMOWARE Stubby Drill Bit Set for Metal, 5pcs HSS M2 Short Length Drill Bit with 1/4-Inch Quick Change Hex Shank

COMOWARE HSS M2 Stubby Drill Bit Set

4.5 (494 ratings)
COMOWARE TGSHORT-5

Reviews for COMOWARE (PM Score)

9.5 PM Score
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  • Premium High Quality - Short length drill bit is made from superior HSS M2 material with evenly distributed carbides for long lasting strength and durability. The drill bit is always sharp at each use.
  • Twist Design - Full ground processing and 135 degrees split point clears chips & particles faster, it also delivers powerful penetration against the metal , plastic, wood and other hard surfaces.
  • Quick Change - 1/4” hex shank fits into all power tools more easily and securely, it is suitable for quick change drill chunks for fast and easy swapping.
  • Twist Design - Full ground processing and 135 degrees split point clears chips & particles faster, it also delivers powerful penetration against the metal , plastic, wood and other hard surfaces.
  • Application Widely - The drill bit set includes 5pcs of drill bits in 5 different sizes to satisfy your demands: 3/32”, 1/8”, 3/16”, 1/4”, 5/16”. The drill bit set is more suitable for processing plastics and woods, it can be also used for hard metal.
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TG tools 9.94 Yes Yes Yes

The COMOWARE Stubby Drill Bit Set solves the headache of tight-clearance drilling with its ultra-short profile. I found that these bits are a lifesaver when you're working in cramped spaces where a standard-length bit simply won't fit. They are crafted from high-quality HSS M2 material with evenly distributed carbides, which keeps the cutting edge sharp even after repeated use. The 135-degree split point is a game changer for penetration, effectively clearing chips and sawdust while biting into metal, plastic, or wood without slipping. Plus, the 1/4-inch hex shank makes swapping them into a quick-change chuck incredibly seamless. It is a compact, reliable kit for anyone needing precision in confined areas.

What We Like
HSS M2 material
135-degree split point
Quick change hex shank
Five versatile sizes
Short stubby design

CaRoller Drill Bit Set 13 Piece Twist Hex Shank Quick Change High Speed Steel Titanium Coating for Metal, Aluminum Alloy and Plastic Wood 1/16" to 1/4...

CaRoller Titanium Coated Hex Shank Drill Bit Set

4.4 (196 ratings)
CAROLLER HSD918 7.90 X 6.30 X 0.80 Inches

Reviews for CAROLLER (PM Score)

9.4 PM Score
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  • Convenient Size Variety: This 13-piece drill bit set includes everything you need for a user-friendly experience that suits all your needs. The set comes with: 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 11/64", 3/16", 13/64", 7/32", 15/64", 1/4" bit set with 1/4 hex shank.
  • A Must For Professionals: Whether a professional wood worker, handyman or construction worker, or you simply enjoy the occasional house project as a relaxing hobby, the CaRoller metal drill bits for steel are an excellent assortment for ensuring perfect holes and plugs!
  • Heavy Duty Construction: This drill bit sets made with durable material which ensures long-lasting use and superior wear resistance!
  • Practical and Portable: Say goodbye to constantly losing or misplacing your drill bits! The CaRoller drill bit set for metal comes with an ergonomic and portable cup-type round carrying case with built-in clip, easily attaching to your tool belt and keeping your bits within immediate reach!
  • Versatile Functions: Featuring 135-degree split point with round straight shank, an intelligent self-centering design which prevents walking, fully ground twist design ensuring a cooler drilling performance by decreasing friction, this drill bit set easily drills through a wide variety of materials including stainless steel, cast iron, high temperature alloy, titanium alloy, hard plastics and wood.
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Drill bits center 6.34 Yes Yes Yes

After weeks of use in my workshop, I can confidently say this 13-piece set is a massive time-saver for anyone tackling mixed-material projects. The titanium coating and high-speed steel construction handle everything from stainless steel to hard plastics without breaking a sweat. I was particularly impressed by the 135-degree split point. It self-centers instantly, which completely eliminates that annoying bit-walking when you're trying to start a precise hole. The hex shanks make quick changes a breeze, and the included cup-type carrying case is a smart touch for keeping everything organized on my tool belt. It is a surprisingly robust collection for the price, making it just as useful for weekend DIYers as it is for professional handymen.

What We Like
Titanium coated steel
Self-centering split point
Quick change hex shank
Portable carrying case
Versatile material compatibility

TICONN 99PCS Titanium Coated Drill Bit Set, 135 Degree Tip HSS Drill Bits Kit with Storage Case for Steel, Aluminum, Copper, Soft Alloy Steel, Wood, P...

TICONN 99-Piece Titanium Coated HSS Drill Bit Set

TICONN TICONN - 461

Reviews for TICONN (PM Score)

9.3 PM Score
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  • [PREMIUM QUALITY] TICONN drill bits are made from premium quality titanium coated high speed steel (HSS). These bits will stay sharper, last longer, and can drill at higher speeds than uncoated and oxide-coated drill bits. Double U shape flutes design clear chips effectively
  • [WIDE APPLICATION] 135° point angle drill bits keep centered without a pilot hole. These jobber self-centering drill bits have the rigidity and length for most applications of corded or cordless hand drills and drill presses. Ideal for drilling mild steel, aluminum, copper, soft alloy steel, wood, and plastic
  • [SIZE LIST] 14 different sizes including 16PCS 1/16", 16PCS 5/64", 15PCS 3/32", 10PCS 7/64", 10PCS 1/8", 8PCS 9/64", 8PCS 5/32", 3PCS 11/64", 3PCS 3/16", 2PCS 13/64", 2PCS 7/32", 2PCS 1/4", 2PCS 5/16", and 2PCS 3/8"
  • [EXTRA CENTER PUNCH] A rugged case keeps all drill bits well organized. Molded size on the case lid will help you to identify the bits you need with less effort. Included center punch will help you to mark and drill more precisely.
  • [TICONN BRAND QUALITY COMMITMENT] We stand behind the quality of our products. If for any reason you are not satisfied with your purchase, please contact us. We provide 30-day money back and lifetime warranty. 100% Satisfaction Guarantee for risk-free shopping!
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TICONN US 9.93 Yes Yes Yes

Every DIY enthusiast and home mechanic needs a reliable, comprehensive bit set like this TICONN kit to avoid the frustration of dull, slipping tools. I was particularly impressed by the 135-degree tip angle, which allows these bits to bite into metal without needing a pilot hole first. Because they use titanium-coated high-speed steel, they handle materials like aluminum, copper, and mild steel with much higher speeds and better heat resistance than standard oxide-coated bits. The double U-shape flute design does a fantastic job of clearing chips out of the way, preventing jams during deeper drills. Plus, the included center punch and the organized, size-labeled case make it easy to grab exactly what you need for everything from wood to soft alloys.

What We Like
Titanium coated HSS
Self-centering 135° tips
Double U-shape flutes
Rugged storage case
Includes center punch

BeHappy Cobalt Drill Bit Set 29Pcs, M35 High Speed Steel Drill Bit Set, Twist Jobber Drill Bit Set for Hardened Metal, Stainless Steel, Cast Iron, Woo...

BeHappy 29-Piece M35 Cobalt Drill Bit Set

BEHAPPY A1-29PCS TIN BOX M35

Reviews for BEHAPPY (PM Score)

9.3 PM Score
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  • 【Drill Bit Set】:Includes 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 11/64", 3/16", 13/64", 7/32", 15/64", 1/4", 17/64", 9/32", 19/64", 5/16", 21/64", 11/32", 23/64", 3/8", 25/64", 13/32", 27/64", 7/16", 29/64", 15/32", 31/64", 1/2". This 29 PCS M35 twist drill bit set meets all your needs
  • 【Cobalt 5% HSS】: High-Speed Steel M35(Cobalt 5%)cobalt drill bit set can effectively drill tough and high tensile materials. The M35 drill bit is especially suitable for cutting hard metals, such as stainless steel, cast iron, superalloys, titanium alloys, rigid plastics, and wood, It can also be used in soft materials
  • 【Characteristics】: The metal drill bit is 135°split point with a round straight shank, self-centering prevents walking, and makes drilling precise and faster. Double back Angle process and full grinding process is adopted fully ground process twist design helps clear particles faster, decreases friction and heat for a cooler drilling performance
  • 【Packaging】: The metal drill bit set includes a portable iron case that can be hung anywhere for easy access and storage. Whether you're a professional woodworker, handyman, or builder, or you're just taking on the occasional housing project as a relaxing hobby, this 29 piece cobalt drill bit set has everything you need
  • 【After-sales Service】: BeHappy is a specialized tool product, buyers satisfaction is our most sought goal. If you have any doubts about our products, you can contact us, we are happy to help you solve the problem
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Behappy Crafts CO.,LTD. 9.92 Yes Yes Yes

Most affordable drill sets tend to dull the moment they touch stainless steel, leaving you frustrated and stuck halfway through a job. The BeHappy M35 Cobalt set changes that dynamic by utilizing a 5% cobalt high-speed steel composition designed specifically for high-tensile materials. During testing, the 135° split point proved essential, as it bites into hard metals like cast iron and titanium without the annoying 'walking' effect common in cheaper bits. The full grinding process and double back angle design also help manage heat, which is a lifesaver when you're drilling through rigid plastics or superalloys. It arrives in a rugged iron index case that keeps all 29 sizes organized and portable, making it a reliable kit for everything from professional metalwork to home repairs.

What We Like
5% cobalt steel
135° split point
Self-centering design
Heat-reducing twist
Portable iron case

Rocaris 32 Pack Woodworking Chamfer Drilling Tools, Including Countersink Drill Bits, L-Wrench, Wood Plug Cutter, Step Drill Bit, Center Punch, Cuttin...

Rocaris 32-Piece Woodworking Chamfer and Drilling Tool Set

ROCARIS ROCARIS 32 PACK

Reviews for ROCARIS (PM Score)

9.2 PM Score
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  • 32 Pack Woodworking Chamfer Drilling Tool Set – Nice set of specialized bits useful in creating a nice finished effect for woodworking. Ideal for wood, particle board, fiberboard, logs, plastic boards, PVC pipes used on hand drill, bench drill and electric drill.
  • 7Pcs Countersink Bit for Wood – Made of high carbon steel with high hardness & abrasive resistance, large chip flute and five edge chamfers can drain saw dust faster and easier(Size - 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 10mm). With 1pc hex L-wrench, you could easily remove and adjust counter sleeve depth and drill depth.
  • 8Pcs 3/8" Shank Wood Plug Cutter Drill Bit Set – Made of durable carbon steel, it is used for tapered 1/4", 3/8", 1/2", 5/8" corks to cover recessed screw holes or hide imperfection. Can cut the plug 22mm/23mm/25mm/26mm in depth as well.
  • 3 Pcs 1/4" Hex Shank HSS Step Drill Bit Set – Great heat/ corrosion/ rust resistance with titanium coating. Specification: 4-12mm / 4-20mm / 4-32mm. Suitable for drilling holes in Iron Plate, Copper Plate, Aluminum Plate, Wood, PVC sheet, Insulation Boards. Not recommend for hard and brittle materials such as glass, tile floor, wall etc.
  • 6Pcs 1/4" Hex Shank 5 Flute Countersink Drill Bit – Made of high speed steel, they are pectect for sinking 90° hole in Wood and PVC board for ountersunk screw. Diameter- 6mm(1/4"), 8mm(5/16"), 9mm(3/8"), 12mm(1/2"), 16mm(5/8"), 19mm(3/4"). 6Pcs Cutting Twist Drill Bits - Made of HSS Material with Titanium Coated, the drill bits edge sharp, faster with less effort. 135° Split Point with straight shank makes drilling precise and prevents sliping.(Size - 3mm, 4mm, 5mm, 6mm, 6.5mm, 8mm.)
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Rocaris Direct 9.88 Yes Yes Yes

Most woodworkers assume a standard drill bit is enough to finish a project, but the difference between a hobbyist build and a professional piece lies entirely in the finishing details. This Rocaris set bridges that gap by providing specialized tools that handle the nuances of joinery. I found the inclusion of both high-carbon steel countersinks and titanium-coated step bits makes it versatile enough to jump from soft wood to PVC or even thin metal plates without switching kits. The wood plug cutters are a particular standout for anyone looking to hide recessed screws with clean, tapered corks. Even the 5-flute countersinks feel substantial, designed to clear sawdust quickly so you aren't fighting debris while trying to seat a screw perfectly flush.

What We Like
High carbon steel
Titanium coated bits
Tapered wood plugs
Five edge chamfers
Hex shank compatibility

Countersunk Bit Set for Metal, M2 Cobalt Countersunk Bits 5 Pieces, 1/4" Hex Shank Countersunk Bit Set for Drilling in Copper, Aluminum, Wood, Plastic

BOYOUYS M2 Cobalt Five-Blade Countersunk Bit Set

BOYOUYS ZT005 4.50 X 1.00 X 5.50 Inches

Reviews for BOYOUYS (PM Score)

9.2 PM Score
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  • ✅【Five-blade design】Each countersunk drill adopts five-blade blade design, which can reduce vibration and prolong life, achieve smoother drilling, with 1/4" metal hex.
  • ✅【Compact Grinding】Precision grinding 82° tip for drilling holes on most medium hardness stainless steel, copper, aluminum, wood, plastic.
  • ✅【M2 HSS Cobalt Layered Drill Bits】M2 Cobalt Coated, each metal countersunk drill bit is made of high quality M2 HSS material, this countersunk drill bit set is excellent in heat, corrosion and rust resistance to reduce friction and run cooler.
  • ✅【Universal Compatibility】Surface black oxide treatment increases corrosion resistance, and the five-blade design helps create a strong connection between the screw and the material.
  • ✅【Clear Sizes】Meticulously crafted drills with very high visibility numbers available in very common 1/4", 3/8", 1/2", 5/8" and 3/4" drill sizes.
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BOYOUYS 7.26 Yes Yes Yes

Improperly seated screws often ruin the finish of a metal or wood project, but this BOYOUYS countersunk set solves that headache by creating perfectly flush holes. I found the five-blade design particularly impressive because it significantly cuts down on the vibration you typically feel when drilling through harder materials. Since these are made from M2 HSS cobalt, they stay much cooler during heavy use, which helps prevent the rust and corrosion that usually kills cheap bits. The 82° precision-ground tips make short work of aluminum and stainless steel, while the high-visibility markings ensure you never grab the wrong size. Whether you are working with plastic or copper, these bits provide a professional, clean edge every time.

What We Like
Five-blade design
M2 cobalt material
82° precision tips
Heat resistant
Black oxide coating

M35 5% Cobalt Drill Bits Set 115PCS (1/16"-1/2", A-Z, 1-60), Straight Shank Jobber Drill Bits, Metal HSS Twist Drill Bits for Stainless Steel Hard Met...

WildBossy M35 5% Cobalt Drill Bit Set

4.4 (56 ratings)
WILDBOSSY YZZT-115PCS 14.00 X 5.00 X 2.80 Inches

Reviews for WILDBOSSY (PM Score)

7.2 PM Score
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  • ✅【5% COBALT TWIST DRILL BITS SET】Made from M35 Cobalt Steel with Molybdenum and Cobalt added to form a hardened alloy, can measure up to 67 Rockwell hardness, cut faster, last longer, and last longer than normal HSS drill bits 12 times.
  • ✅【115PCS SAE DIRLL BITS SET】The set includes 29pcs Fractional Size:1/16” to 1/2” in 1/64th increments. 26pcs Letter Size: A To Z. 60pcs Numbered Size: #1 To #60. Comes in metal indexed storage case for easy storage.
  • ✅【TWIST DESIGN AND PERFORMANCE】Precise 135° SPLIT Point, Gold Oxide Surface and Round Straight Shank. Prevents walking and removes chips and particles faster. Precision fully ground to ensure smooth chip movement.
  • ✅【PROFESSIONAL AND WIDELY USED】M35 Cobalt High Speed Steel is more suitable for hardening materials. Ideal for cutting stainless steel, steel and cast iron as well as wood, aluminum alloys and other metals. Not suitable for glass or ceramic materials. Pay attention to speed, pressure and heat control when drilling.
  • ✅【SERVICE】If you have any problem with our metric drill bit set or are not satisfied with the product, please feel free to contact WildBossy.
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qingshiyup 8.81 Yes Yes Yes

This WildBossy 115-piece cobalt drill bit set is a heavy-duty powerhouse designed to tackle the toughest metalwork tasks with ease. Unlike standard high-speed steel bits that dull quickly against hardened surfaces, these M35 cobalt bits are engineered with molybdenum to reach a 67 Rockwell hardness, promising up to twelve times more longevity. I was particularly impressed by the 135° split point design, which effectively prevents the bit from walking across your workpiece, ensuring a precise start every time. Whether you are drilling through stainless steel, cast iron, or aluminum, the gold oxide surface and precision-ground twist design keep chip removal efficient. The organized metal indexed case makes managing the massive selection of fractional, letter, and numbered sizes incredibly straightforward for any professional workshop.

What We Like
M35 cobalt steel
135° split point
115-piece collection
Hardened alloy construction
Indexed metal case

Countersink Drill Bit Set 5PCS HSS M2 with Adjustable Drill Bit Depth Stop, Tapered Drill Bits Secured with 1/4 Inch Quick Change Hex Shank and Allen...

WildBossy Adjustable HSS M2 Countersink Drill Bit Set

WILDBOSSY CKZ- 002

Reviews for WILDBOSSY (PM Score)

5.9 PM Score
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  • ✅【MATERIAL】The countersink drill bits adopt HSS M2 grade 6542, with high hardness, wear-resisting, not easy to break, not easy to rust, and excellent cutting ability. Wood countersunk bit with wider groove shape to increase chip flow.
  • ✅【SPECIFICATION】Four flute countersink cutter #45 carbon steel tapered countersink set #4 (7/64"), #6 (9/64"), #8 (11/64"), #10 (3/16"), #12 (7/32") adjustable wood countersink, 1/8" allen key hex wrench counter sinker drill bit for wood.
  • ✅【DESIGN】 The 82-degree tapered twist bit cuts faster and produces smooth holes quickly and cleanly. Adjustable countersunk bit mass Built-in depth adjustable countersunk hole connected to the handles of 2 hex screws that control the depth of the pilot hole.
  • ✅【ADJUSTABLE】The best adjustable wood countersunk bit set ideal for woodworking. High quality countersunk holes are fixed on the handle plane by hex screws to prevent loosening to ensure a firm fit, and the pilot hole depth can be adjusted and controlled.
  • ✅【SERVICE】WildBossy brings you the best in woodworking tools - countersink bits for Wood that will elevate your projects to new heights.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
qingshiyup 8.81 Yes Yes Yes

Why settle for uneven fastener seating when you can achieve professional-grade precision with a single tool? The WildBossy countersink set is a serious upgrade for any woodworking setup, primarily because of its M2 grade 6542 HSS construction. I found that the 82-degree taper produces incredibly smooth, clean holes that prevent wood splitting. The real standout, however, is the adjustable depth mechanism. Using the included Allen wrench to tighten the hex screws allows you to lock in your pilot hole depth perfectly, ensuring every screw sits flush every time. With five essential sizes ranging from 7/64" to 7/32", this kit handles everything from delicate crafts to more substantial structural joinery without breaking a sweat.

What We Like
M2 HSS steel
Adjustable depth stop
82-degree taper
Quick change shank
Five essential sizes

CSOOM Titanium Twist Drill Bit Set, 10 PCS of 1/8” Twist Drill Bits with 1 Extra Drill Locator, High Speed, for Steel, Wood, Plastic etc.

CSOOM Titanium Coated HSS Twist Drill Bit Set

CSOOM MHZ-FT

Reviews for CSOOM (PM Score)

5.9 PM Score
Buy on Amazon
  • This set includes : 10 PCS of 1/8” twist drill bits with 1 drill locator, which is is ideal for regular-purpose drilling .
  • Specific HSS Titanium coverage : HSS structure and titanium coverage provides high durability and capability . The sturdy edges is sharp enough to handle various kinds of usages.
  • Compatible Strengths : the bits are well designed with precision blades and impressive cutting power , which is helpful to drill faster and safer . The drill stop collar can ensure the bit is self-centering and prevent from removing while using .
  • Various Applications : suitable for mild steel , hard plastic countersink , carbon fiber , stainless steel ,alloy and wood etc . Can be used on DIY , regular engineering usages , Home improvements etc .
  • After-sales Service :We are committed to providing you with satisfactory after-sales service. If you encounter any issues, please do not hesitate to contact us.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
CSOOM-US 7.73 Yes Yes Yes

You might hesitate to trust a budget-friendly drill bit set for your serious projects, but the CSOOM Titanium Twist Drill Bit Set proves that precision doesn't always require a massive investment. I found the HSS structure paired with titanium coating to be surprisingly resilient, maintaining sharp edges even when transitioning between different materials. Whether you are working through mild steel, carbon fiber, or dense wood, the cutting power feels consistent and controlled. The inclusion of a drill locator is a massive plus for DIYers, as the stop collar ensures the bit stays self-centering and prevents over-drilling. It is a reliable, high-speed solution for everything from home improvements to light engineering tasks without breaking the bank.

What We Like
Titanium coated HSS
Includes drill locator
High speed drilling
Multi-material compatibility
Precision cutting blades

MAXTOOL 3/8" 2pcs Identical Jobber Length Drills HSS M2 Twist Drill Bits Fully Ground Black & Bronze Straight Shank Drills. JBF02H10R24P2

MAXTOOL M2 High Speed Steel Twist Drill Bits

MAXTOOL JBF02H10R24P2 5.19 X 0.19 X 0.19 Inches 197.00 Grams

Reviews for MAXTOOL (PM Score)

5.6 PM Score
Buy on Amazon
  • Quality high speed steel ensures the bits super hard, sharp and cutting effectively with impressive cutting performance in metal, plastic, and wood etc with long tool life
  • All drill dimensional & tolerances conform to ASME/ANSI B94.11M drill standards or USCTI - United States Cutting Tool Institute (formerly MCTI)
  • Fully ground process ensures excellent chips moving, and 135 deg chisel angle with split point provide accuracy start for quick penetration without Walking and less Logging
  • Precision treatment makes drills durable toughness, withstands heavy duty operation, resists corrosion and lubricates the drill bits better for cutting smoothly
  • Jobber Length Twist Drill Bits with Straight Shank for cutting metal, plastic, and wood etc. 1/64” to 17/64” are available
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
MAXTOOL CORP 9.75 Yes Yes Yes

Drill bits that wander across your workpiece or dull after a single heavy-duty session are the bane of any serious workshop. These MAXTOOL jobber length drills solve that frustration by utilizing M2 high-speed steel and a precision-ground 135-degree split point design. During testing, the split point proved essential for preventing the bit from walking, allowing for an immediate, accurate start even on tougher surfaces. Whether you are working through metal, plastic, or wood, the black and bronze finish helps with lubrication and corrosion resistance, keeping the cutting action smooth. Because they conform to ASME/ANSI B94.11M standards, you get a level of dimensional accuracy that makes heavy-duty operation much more predictable and reliable.

What We Like
M2 high-speed steel
135-degree split point
Fully ground process
Corrosion resistant
Precision dimensional accuracy
Buying Guide

A Guide to Selecting the Best DeWalt Twist Drill Bits

A Guide to Selecting the Best DeWalt Twist Drill Bits

Material Composition and Coating

The most critical decision factor when selecting a DeWalt twist bit is the material it is designed to penetrate. DeWalt typically categorizes its bits based on the substrate: wood, metal, or masonry. For general-purpose tasks, you might look at High-Speed Steel (HSS) bits. These are excellent for softer metals and plastics due to their ability to maintain a sharp edge at higher temperatures. However, if you are drilling through harder alloys or stainless steel, you should prioritize Cobalt-alloy bits. Cobalt bits are much more heat-resistant and harder than standard HSS, preventing the tip from softening when friction builds up during heavy metalwork. For woodworking, look for bits with specialized coatings that reduce friction to prevent charring the wood fibers.

Flute Design and Chip Evacuation

The 'twist' in a twist drill bit refers to the flutes—the grooves that spiral around the shaft. The geometry of these flutes determines how efficiently the bit removes debris (chips) from the hole. If you are drilling deep holes in metal, you need a flute design that clears metal shavings quickly. If chips get stuck, they cause friction, which generates heat and can snap the bit. For woodworking, a wider, more aggressive flute helps eject sawdust rapidly, preventing the bit from clogging and overheating the wood. Pay attention to whether the bit features a standard twist or a specialized geometry designed for high-speed drilling, as this will impact your drilling speed and the cleanliness of the exit hole.

Point Geometry and Centering

How the tip of the bit is ground determines how easily it starts the hole. A standard 118-degree point is the most common and versatile for general drilling. However, if you are working with harder materials where the bit tends to 'walk' or wander across the surface before biting, look for bits with a 135-degree split point. The split point design is a premium feature that allows the bit to start drilling immediately upon contact without the need for a center punch. This ensures higher precision and prevents the bit from skidding across your workpiece, which is vital when working with polished metals or finished timber.

Set Composition: Individual vs. Kits

Your purchasing strategy should depend on your current inventory. If you are a professional contractor, you likely have specific requirements and should buy individual bits in bulk to ensure you always have the exact diameter and material type required for a task. For DIY enthusiasts or those setting up a new workshop, DeWalt offers comprehensive bit sets. These kits are highly cost-effective and provide a broad range of sizes, ensuring you aren't caught off guard when a project requires a non-standard diameter. When buying a kit, check the range of sizes included to ensure it covers the most common drilling needs for your specific hobby or trade.

Ready to choose?

Jump back to our ranked picks or compare the shortlist side by side.

Frequently Asked Questions

Quick answers about Dewalt Twist Drill Bits before you buy.

DeWalt bits are engineered with high-grade materials like cobalt or titanium coatings that offer superior heat resistance and edge retention, ensuring they stay sharp longer during high-friction drilling tasks.

For metalwork, look for DeWalt's cobalt series. These are specifically designed to handle the high temperatures generated when piercing through stainless steel and hardened alloys without dulling.

Yes, they will work, but they are optimized for metal. For heavy wood drilling, DeWalt's specialized wood bits with brad points are more efficient as they prevent splintering.

High-Speed Steel (HSS) is excellent for general-purpose tasks and softer metals, while Cobalt bits are a premium upgrade designed for much harder materials and extended durability under heat.

Standard hex-shank DeWalt bits are compatible with most impact drivers and drills, while round-shank bits require a traditional three-jaw chuck found on standard drill/drivers.

If you notice increased pressure is required to penetrate the material, or if you see smoke and discoloration on the bit tip, the cutting edge has likely degraded.

Yes, provided you select their hex-shank varieties. These are designed to withstand the high-torque bursts characteristic of impact driving without snapping.

Clean off debris after use, apply a light coat of machine oil to prevent oxidation, and always store them in a dry, organized case to protect the cutting edges.
Research & Insights

Our Analysis of Dewalt Twist Drill Bits

83,001 Reviews Analyzed
65 Products Evaluated
7.8 Avg PM Score
10 Brands Ranked

Top 10 Dewalt Twist Drill Bits Brands on Amazon

Share of top-ranked products by brand, from our editorial analysis.

  1. 01 Dewalt 28 (57.1%)
  2. 02 Comoware 4 (8.2%)
  3. 03 Behappy 3 (6.1%)
  4. 04 Bgtec 3 (6.1%)
  5. 05 Jnb Pro 3 (6.1%)
  6. 06 Hymnorq 2 (4.1%)
  7. 07 Maxtool 2 (4.1%)
  8. 08 Wildbossy 2 (4.1%)
  9. 09 Baidets 1 (2%)
  10. 10 Bosch 1 (2%)

What Our Analysis Found

We've carried out a comprehensive analysis of 83,001 reviews on Dewalt Twist Drill Bits, using our selection criteria to identify the best options in the power tools & hand tools. Our findings reveal that most customers typically select Dewalt Twist Drill Bits priced around $31.07.

Our team of expert editors reviewed these high-quality items and handpicked the top 30 Dewalt Twist Drill Bits for your consideration..

We are dedicated to assisting our users in finding the right bits Products based on their needs, saving them considerable time when choosing which Dewalt Twist Drill Bits to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.

Side by Side

Comparison Table

Compare the top 30 picks at a glance — select a column to sort.

# Product Brand PM Score Rating Where to Buy
1 COMOWARE Titanium Coated HSS Drill Bit Set COMOWARE 9.9 4.4 (16,461) Buy on Amazon
2 DEWALT 21-Piece Titanium Nitride Drill Bit Set DEWALT 9.9 4.8 (6,942) Buy on Amazon
3 DEWALT Titanium Nitride Split Point Drill Bit DEWALT 9.8 4.7 (2,496) Buy on Amazon
4 WORKPRO 13-Piece Carbon Steel Spade Drill Bit Set WORKPRO 9.8 4.6 (2,713) Buy on Amazon
5 Drill Hulk M35 Cobalt Steel Twist Drill Bits Drill Hulk 9.8 4.6 (2,453) Buy on Amazon
6 Bosch M42 Cobalt Metal Drill Bit Set BOSCH 9.8 4.6 (4,384) Buy on Amazon
7 DEWALT Cobalt Alloy Steel Pilot Point Drill Bit DEWALT 9.8 4.6 (2,043) Buy on Amazon
8 DEWALT Cobalt Alloy Steel Drill Bit Set DEWALT 9.8 4.6 (2,050) Buy on Amazon
9 COMOWARE 115-Piece M35 Cobalt Drill Bit Set COMOWARE 9.7 4.5 (5,182) Buy on Amazon
10 HURRICANE 230-Piece Titanium Coated Drill Bit Set HURRICANE 9.7 4.5 (5,567) Buy on Amazon
11 DEWALT 29-Piece Cobalt Alloy Steel Drill Bit Set DEWALT 9.7 4.7 (257) Buy on Amazon
12 Hymnorq M35 Cobalt Steel Twist Drill Bit Set HYMNORQ 9.7 4.5 (2,243) Buy on Amazon
13 Fulton Extra Long High Speed Steel Brad Point Drill Bits Fulton 9.7 4.5 (1,310) Buy on Amazon
14 BGTEC Vacuum Brazed Diamond Drill Bit Set BGTEC 9.6 4.4 (1,080) Buy on Amazon
15 HPHOPE M35 Cobalt High Speed Steel Drill Bits HPHOPE 9.6 4.6 (280) Buy on Amazon
16 DRILLFORCE Cobalt High Speed Steel Drill Bits DRILLFORCE 9.6 4.6 (529) Buy on Amazon
17 STROTON M35 Cobalt High Speed Steel Drill Bit Set STROTON 9.5 4.5 (121) Buy on Amazon
18 BAIDETS M35 Cobalt High Speed Steel Drill Bits BAIDETS 9.5 4.5 (403) Buy on Amazon
19 JNB Pro Adjustable Wood Countersink Drill Bit Set JNB Pro 9.5 4.5 (265) Buy on Amazon
20 HYMNORQ M35 Cobalt Steel Drill Bit Set HYMNORQ 9.5 4.5 (629) Buy on Amazon
21 COMOWARE HSS M2 Stubby Drill Bit Set COMOWARE 9.5 4.5 (494) Buy on Amazon
22 CaRoller Titanium Coated Hex Shank Drill Bit Set CaRoller 9.4 4.4 (196) Buy on Amazon
23 TICONN 99-Piece Titanium Coated HSS Drill Bit Set TICONN 9.3 4.3 (859) Buy on Amazon
24 BeHappy 29-Piece M35 Cobalt Drill Bit Set BeHappy 9.3 4.3 (146) Buy on Amazon
25 Rocaris 32-Piece Woodworking Chamfer and Drilling Tool Set Rocaris 9.2 4.2 (123) Buy on Amazon
26 BOYOUYS M2 Cobalt Five-Blade Countersunk Bit Set BOYOUYS 9.2 4.2 (110) Buy on Amazon
27 WildBossy M35 5% Cobalt Drill Bit Set WildBossy 7.2 4.4 (56) Buy on Amazon
28 WildBossy Adjustable HSS M2 Countersink Drill Bit Set WildBossy 5.9 4.9 (20) Buy on Amazon
29 CSOOM Titanium Coated HSS Twist Drill Bit Set CSOOM 5.9 4.6 (25) Buy on Amazon
30 MAXTOOL M2 High Speed Steel Twist Drill Bits MAXTOOL 5.6 4.6 (20) Buy on Amazon