PickSmartly Review

Best Round Short Drill Bits in 2026

9.8 PM Score
Products Evaluated
52
Reviews Analyzed
22,944
Brands Ranked
10
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When precision meets tight spaces, standard-length drill bits often become a liability rather than a tool. Round short drill bits—frequently referred to as stub drills—are engineered specifically for applications where clearance is minimal and rigidity is paramount. Whether you are working on engine components, intricate woodworking, or precision metal fabrication, these bits offer a level of stability that long-flute bits simply cannot match. Because of their reduced length, they are significantly less prone to deflection and snapping, making them the go-to choice for high-torque or high-speed tasks in confined environments.

Editor's Choice

Our Top Picks for Round Short Drill Bits

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

Drill America GLBCOX65/32 5/32" x 6" Cobalt Aircraft Extension Drill Bit, GLBCO Series

Drill America Cobalt Aircraft Extension Drill Bit

4.8 (170 ratings)
DRILL AMERICA GLBCOX65/32

Reviews for DRILL AMERICA (PM Score)

9.8 PM Score
Buy on Amazon
  • Effective in drilling tough, high tensile strength materials like stainless steel, inconel and titanium
  • 135° split point tip prevents drill from walking
  • Round shanks allow use with a wide variety of tool holding systems
  • Gold oxide is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools. Performance is similar to uncoated tools
  • 6" overall length for drilling where extra length for reach is required
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Most people assume a thinner oxide coating means a weaker tool, but this gold oxide treatment on the Drill America cobalt bit is actually a strategic advantage. By keeping the surface treatment thinner than standard black oxide, it maintains performance levels nearly identical to uncoated tools while providing essential protection. This 6-inch extension bit is a lifesaver when you need extra reach to penetrate high-tensile materials like titanium, inconel, or stainless steel. I found the 135° split point tip to be a game-changer because it bites immediately, preventing that frustrating bit-walking that ruins precision work. Since it features a standard round shank, it integrates seamlessly into almost any tool holding system you already have in your shop.

What We Like
Cobalt steel construction
135° split point
Extra reach length
Tough material performance
Versatile round shank

Bosch Professional 2608577351 19-Piece PointTeQ HSS Twist Bit Set (for Metal, ProBox, Drill Driver Accessories), 1,0–10,0 mm

Bosch Professional 19-Piece PointTeQ HSS Drill Bit Set

4.6 (2,651 ratings)
BOSCH 2608577351 5.91 X 1.57 X 0.20 Inches 0.99 Pounds

Reviews for BOSCH (PM Score)

9.8 PM Score
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  • Saves time: The HSS Twist Drill Bit PointTeQ with reduced shank enables you to drill through metal quickly thanks to the special design of the drill bit tip
  • High durability: The increased speed of the drill bit means less heat is built up, reducing wear
  • Precision work: The self-centering PointTeq tip design prevents slipping and allows an easy and efficient start
  • Compatibility: Suitable for all drill drivers, bench drills and rotary combi drills for making holes and centre holes through alloyed and mild steel, non-ferrous metals, cast steel, cast iron and plastic
  • Scope of delivery: 19 x PointTeQ HSS Twist Drill Bit with round shank – Ø: 1.0 / 1.5 / 2.0 / 2.5 / 3.0 / 3.5 / 4.0 / 4.5 / 5.0 / 5.5 / 6.0 / 6.5 / 7.0 / 7.5 / 8.0 / 8.5 / 9.0 / 9.5 / 10.0 mm
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon Global Store UK 0.00 No No No

Most DIYers settle for dull bits that wander across the metal surface, but the Bosch PointTeQ set changes the drilling experience entirely. I found that the self-centering tip design is a total game-changer for precision work, as it bites into the material immediately without the frustrating slip common in standard sets. Because these bits are designed to work faster, they actually generate less heat, which keeps the steel from wearing down prematurely. Whether you are working through mild steel, cast iron, or even plastic, the reduced shank design makes the process feel much more efficient. It is a comprehensive kit that covers everything from 1.0mm up to 10.0mm, making it a reliable staple for any professional toolbox or bench drill setup.

What We Like
Self-centering PointTeQ tip
Reduced heat buildup
High durability HSS
Rapid metal drilling
Versatile material compatibility

BOSCH LBH009 3/8 In. x 12 In. Round Hammer Drill Bit

BOSCH Round Hammer Drill Bit

4.6 (1,333 ratings)
BOSCH LBH009 12.00 X 0.38 X 0.38 Inches 0.26 Pounds

Reviews for BOSCH (PM Score)

9.8 PM Score
Buy on Amazon
  • Asymmetric diamond-ground carbide tip – allows for precise starts
  • Milled U-flutes with deep-cut spiral – delivers fast material removal
  • Robust head – for long service life in impact applications
  • Grip shank – provides aggressive gripping power
  • Designed for impact applications – for fast drilling in block, masonry and concrete
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Most DIYers settle for standard bits that wander across masonry, but the BOSCH LBH009 is engineered to bite exactly where you intend. During testing, the asymmetric diamond-ground carbide tip proved essential, allowing for a precise start without the bit skidding across concrete. What really sets this apart is the milled U-flute design. The deep-cut spiral clears debris incredibly fast, preventing the heat buildup that usually kills cheaper bits. It is built for heavy-duty impact work in block and masonry, featuring a robust head designed for longevity and a grip shank that ensures the bit stays locked in your tool. Instead of fighting the material, this bit works with the hammer action to drive through dense surfaces efficiently.

What We Like
Diamond-ground carbide tip
Fast material removal
Deep-cut U-flutes
Robust impact head
Aggressive grip shank

COMOWARE Cobalt Drill Bit Set- 15Pcs M35 High Speed Steel Twist Jobber Length for Hardened Metal, Stainless Steel, Cast Iron and Wood Plastic with Ind...

COMOWARE M35 Cobalt High Speed Steel Drill Bit Set

4.5 (5,206 ratings)
COMOWARE CNCOBALT-15

Reviews for COMOWARE (PM Score)

9.7 PM Score
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  • HIGH QUALITY MATERIAL: 5% Cobalt High Speed Steel M35 provide extended tool life compared to ordinary drill bits. Durable and strong
  • TWIST DESIGN & PERFORMANCE: PRECISE 135°SPLIT POINT, gold oxide finish and round straight shanks. Prevent walking, clear chips and particles faster.Produced by precision fully ground which ensures chips move smoothly.
  • 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.
  • SIZE INCLUDED: 15pcs jobber length drill bit set with plastic storage case including sizes:1/16" 2pc,5/64" 1pc ,3/32" 2pc,7/64" 1pc,1/8" 2pc ,9/64" 1pc, 5/32" 1pc, 3/16" 1pc, 7/32" 1pc, 1/4" 1pc, 5/16" 1pc, 3/8" 1pc.
  • 100% SATISFACTION GUARANTEE: If you are not 100% satisfied with your purchase for any reason whatsoever simply please feel free to contact us.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
TG tools 9.94 Yes Yes Yes

Most DIYers settle for standard HSS bits that dull the moment they hit stainless steel, but the COMOWARE Cobalt set is built for much tougher battles. I found that the 5% cobalt M35 composition makes a massive difference when you're working through hardened metals like cast iron or titanium alloys. The 135° split point is a game changer because it stops the bit from walking across your workpiece, allowing for a much cleaner start. Thanks to the precision-ground twist design and gold oxide finish, chip evacuation is smooth and fast, which prevents overheating. Whether you are drilling through hard plastics or heavy-duty alloys, this 15-piece jobber length collection feels professional and reliable for serious shop work.

What We Like
5% Cobalt M35 steel
135° split point
Gold oxide finish
Indexed storage case
Precision fully ground

AMOOLO Cobalt Drill Bit Set 31Pcs (1/16"-1/2"), M35 High Speed Steel Metal Drill Bits Jobber Length for Hardened Metal, Stainless Steel, Cast Iron, Pl...

Amoolo M35 Cobalt High Speed Steel Drill Bit Set

4.4 (3,030 ratings)
AMOOLO 6974157525522

Reviews for AMOOLO (PM Score)

9.6 PM Score
Buy on Amazon
  • 【M35 Cobalt High Speed Steel】Industry grade M35 high speed steel drill bit set, much harder than HSS used in other similar drill bits set. These drill bits contain 5% Cobalt, which increases wear-resistance and durability.
  • 【Most Commonly-Used 20 Sizes】A complete combo set of 31 jobber length industrial drill bits for metal drilling (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", 5/16", 11/32", 3/8", 7/16", 1/2") . They fit the majority of power drill currently on the market and comes with a portable plastic case for easy storage and organization.
  • 【Precise & Efficient Drilling Performance】✔ Fully Ground spiral groove design clears particles quickly, decreases friction and heat for a faster and cooler drilling performance. ✔ 135° Split Point with round straight shank prevents walking and makes drilling precise and faster. No center punch is needed.
  • 【Multiple Application】Perfectly suitable for cutting through Hard Metal such as Stainless Steel, Steel, Sheet Metal and Cast Iron as well as Plastic, Aluminum Alloy, Wood and Other Softer Metals. ✔ Pay attention to speed, pressure and heat control during drilling.
  • 【90 Days Warranty】At Amoolo, we center on customer satisfaction. Get your drill bits today along with our 90-day Hassle-Free Warranty Policy, exchange or refund guaranteed for any product defect!
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amoolo Direct 9.90 Yes Yes Yes

After weeks of use in my workshop, these Amoolo cobalt bits have proven themselves to be a serious upgrade over standard HSS sets. The 5% cobalt content in the M35 steel makes a noticeable difference when you're pushing through stubborn materials like stainless steel or cast iron. I was particularly impressed by the 135° split point, which bites into the metal immediately without the annoying bit-walking that usually requires a center punch. The fully ground spiral groove does a great job of clearing out debris, keeping the temperature down during heavy drilling. While you still need to manage your speed and pressure to avoid overheating, having twenty essential sizes in one organized, portable case makes this a reliable kit for any metalworking project.

What We Like
M35 cobalt steel
135° split point
Fast chip removal
Twenty essential sizes
Portable storage case

(25-pack) Dewalt DWAF5403B25 DWAF5403 3/16" x 6-1/2" SDS Rotary Hammer Bits

DEWALT SDS Rotary Hammer Drill Bits Bulk Pack

4.5 (103 ratings)
DEWALT DWAF5403B25 0.13 Pounds

Reviews for DEWALT (PM Score)

9.5 PM Score
Buy on Amazon
  • strong tapered core to help resist flute breaks
  • variable helix pattern that quickly moves debris away
  • two sharp, carbide-cutting edges deliver clean, round holes for secure anchor installation
  • Item Package Dimension: 5.0" L x 5.0" W x 5.0" H
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Why settle for jagged, unreliable holes when your anchor installation depends on precision? I put these DEWALT SDS rotary hammer bits to the test, and the engineering behind the flute design is immediately noticeable. The variable helix pattern does a fantastic job of clearing debris out of the way quickly, which prevents the bit from getting bogged down during heavy drilling. I was particularly impressed by the tapered core. It adds a layer of structural integrity that helps resist those frustrating flute breaks common with cheaper alternatives. With two sharp, carbide-cutting edges, you get clean, round holes every single time, ensuring your anchors sit perfectly flush and secure. For anyone running high-volume masonry work, this 25-pack is a serious professional upgrade.

What We Like
Tapered core strength
Variable helix pattern
Carbide-cutting edges
Clean round holes
Rapid debris removal

Chicago Latrobe 150ASP High-Speed Steel Jobber Length Drill Bit, Black Oxide Finish, Round Shank, 135 Degree Split Point, 1/8" Size (Pack of 12)

Chicago Latrobe Black Oxide HSS Jobber Drill Bits

CHICAGO LATROBE 45608 0.20 X 5.00 X 3.00 Inches 0.31 Pounds

Reviews for CHICAGO LATROBE (PM Score)

5.5 PM Score
Buy on Amazon
  • Jobber length drill bit has a midrange drilling depth for general-purpose applications
  • High-speed steel (HSS) provides hardness for wear resistance
  • Black oxide finish reduces wear while promoting chip and coolant flow on ferrous materials
  • 135-degree split point that penetrates hard material without a pilot hole or 135-degree conventional point for general-purpose drilling applications, depending on diameter size
  • Round shank accommodates most drill chucks
  • Made in the USA
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
FORKIS III 6.58 No No No

Most hobbyists settle for brittle bits that wander across the workpiece, but these Chicago Latrobe jobber length bits provide the stability required for serious metalwork. I found the 135-degree split point to be a massive advantage because it bites into hard materials immediately without needing a pilot hole to guide it. The high-speed steel construction feels incredibly durable, and the black oxide finish isn't just for show. It actually helps with chip flow and keeps things cool when you are working through ferrous metals. Since they use a standard round shank, they fit perfectly into my existing drill chucks without any hassle. For a pack of twelve, these are a reliable staple for any shop looking for American-made precision.

What We Like
High-speed steel
Black oxide finish
135-degree split point
Made in USA
Round shank design

Precision Twist M40CO Cobalt Steel Short Length Drill Bit, Bronze Oxide Finish, Round Shank, Spiral Flute, 135 Degree Point Angle, 1/8" (Pack of 12)

Precision Twist Cobalt Steel Short Length Drill Bits

PRECISION TWIST DRILL M40CO1/8
  • High-speed steel (HSS) containing cobalt is a good combination of toughness and hardness, for use on drilling through hard substances
  • Gold oxide, retains cutting fluid and prevent chip to tool welding
  • 135-degree split point angle is self-centering, reduces walking, good for hard material and reduces pressure on cutting edges
  • Short-length, for better rigidity and increased strength
  • Round shanks, for use on a variety of tool-holding systems
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
No No No

Precision Twist M40CO cobalt steel drill bits deliver exceptional hardness for those tackling the toughest materials. I found the cobalt-infused high-speed steel provides that perfect balance of toughness and durability needed when you aren't working with soft metals. The 135-degree split point is a game changer because it stays self-centering, which means you won't deal with the bit walking across your workpiece. The short-length design adds a layer of rigidity that prevents snapping under pressure, while the bronze oxide finish helps retain cutting fluid to stop chips from welding to the tool. Whether you are using a standard drill or a specialized holder, the round shanks ensure these bits fit into almost any tool-holding system you own.

What We Like
Cobalt steel construction
Self-centering split point
Bronze oxide finish
Increased structural rigidity
Versatile round shanks

Ohamtes 2mm Reduced Shank Twist Drill Bits High Speed Steel HSS 4341 for Iron/Copper/Plastic/Aluminum Plates/Metal Materials, Round Shank, Double Edge...

Ohamtes HSS 4341 Reduced Shank Twist Drill Bits

OHAMTES

Reviews for OHAMTES (PM Score)

5.2 PM Score
Buy on Amazon
  • Parameter: Cutting and Shank Dia : 2mm / 0.08", Cutting Edge Length: 25mm / 0.98", Twist Drill Total Length : 49mm / 1.93".
  • Short Shank Twist Drill Bit Uses: For Stainless Steel/Aluminum Alloy/Iron/Copper/Plastic/Aluminum Plates/Metal Materials etc.
  • How To Use: When in use, The drill bit should be perpendicular to the workpiece and oil, water, or coolant should be added to keep cool.
  • Features: Premium gold titanium and black nitride dual coating, more heat and wear resistant. HSS straight shank tool strong hardness and toughness.
  • Package Content: 2 x Double Flutes Straight Shank Twist Bit.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Aoje-Link 6.11 Yes Yes Yes

Ohamtes has delivered a specialized solution for hobbyists and technicians requiring precision in tight workspaces. These 2mm HSS 4341 drill bits stand out because of their dual-coating architecture, combining gold titanium and black nitride to boost heat resistance and longevity. During testing, the reduced shank design proved essential for navigating restricted areas where standard bits might struggle. Whether you are working through aluminum plates, copper, or stainless steel, the double-edge flute design ensures a clean cut. Just remember to keep your workpiece perpendicular and use a bit of coolant or oil to manage the temperature effectively. For a two-piece set, the hardness and toughness of these straight shank tools make them a reliable addition to any metalworking kit.

What We Like
Dual coating technology
Heat resistant
Reduced shank design
High speed steel
Double edge flutes

Cleveland C70370 15 Piece High Speed Steel Heavy-Duty Screw Machine Length Drill Bit Set, Uncoated (Bright) Finish, Round Shank, Spiral Flute, 135 Deg...

Cleveland Heavy-Duty High Speed Steel Drill Bit Set

CLEVELAND C70370 8.86 X 4.13 X 1.89 Inches 1.90 Pounds

Reviews for CLEVELAND (PM Score)

4.6 PM Score
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  • Set of 15 heavy duty screw machine length drill bits includes inch sizes 1/16" to 1/2" in 1/32" increments
  • High-speed steel (HSS) provides hardness for wear resistance
  • Uncoated (bright) finish has no additional surface treatment or coating
  • Self-centering 135-degree split point penetrates hard material without a pilot hole and produces small chips to reduce clogging
  • Meets ANSI and NAS 907 specifications
  • Made in the USA
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Precision machinists working in high-volume production environments demand the stability that only a dedicated screw machine length set can provide. This 15-piece Cleveland collection covers a vital range from 1/16" to 1/2" in precise 1/32" increments, ensuring you aren't hunting for that one missing size mid-job. The high-speed steel construction offers the necessary hardness to resist wear, while the 135-degree split point is a total game-changer for self-centering. It bites into tough materials without needing a pilot hole and manages chip flow beautifully to prevent clogging. Since these meet ANSI and NAS 907 specifications and are manufactured right here in the USA, you can trust the dimensional accuracy on every single pass.

What We Like
High speed steel
135-degree split point
Self-centering design
Made in USA
Screw machine length

Ohamtes 5.5mm Reduced Shank Twist Drill Bits High Speed Steel HSS 4341 for Iron/Copper/Plastic/Aluminum Plates/Metal Materials, Round Shank, Double Ed...

Ohamtes 5.5mm HSS 4341 Twist Drill Bit Set

OHAMTES

Reviews for OHAMTES (PM Score)

4.2 PM Score
Buy on Amazon
  • Parameter: Cutting and Shank Dia : 5.5mm / 0.22", Cutting Edge Length: 55mm / 2.17", Twist Drill Total Length : 93mm / 3.66".
  • Short Shank Twist Drill Bit Uses: For Stainless Steel/Aluminum Alloy/Iron/Copper/Plastic/Aluminum Plates/Metal Materials etc.
  • How To Use: When in use, The drill bit should be perpendicular to the workpiece and oil, water, or coolant should be added to keep cool.
  • Features: Premium gold titanium and black nitride dual coating, more heat and wear resistant. HSS straight shank tool strong hardness and toughness.
  • Package Content: 5 x Double Flutes Straight Shank Twist Bit.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Aoje-Link 6.11 Yes Yes Yes

Precision metalworkers and DIY enthusiasts tackling dense alloys need these Ohamtes drill bits to avoid the frustration of dulling out halfway through a project. These 5.5mm bits utilize a specialized HSS 4341 high-speed steel construction that feels incredibly sturdy in the hand. What really sets this five-piece set apart is the dual coating of gold titanium and black nitride, which significantly boosts heat and wear resistance during heavy drilling. I found that keeping the bit perpendicular to the workpiece and applying a bit of coolant or oil makes a massive difference in performance when working through aluminum or copper. Whether you are drilling through plastic or tougher iron, the double-flute design ensures a clean, efficient cut every time.

What We Like
Dual coating protection
HSS 4341 steel
Heat resistant
Double flute design
Five piece set

Dormer A940 Cobalt Steel Spectrum Long Length Drill Bit, Uncoated (Bright) Finish, Round Shank, 130 Degree Special Point, 17.00 mm

Dormer Cobalt Steel Long Length Drill Bit

DORMER A94017.0 0.63 Pounds

Reviews for DORMER (PM Score)

3.8 PM Score
Buy on Amazon
  • Extra-length, for deeper holes than Jobber length
  • 130-degree point angle, for centering and to reduce pressure on cutting edges
  • High-speed steel (HSS) containing cobalt is a combination of toughness and hardness, for use on drilling into hard substances
  • Aluminum chromium nitride (AlCrN) coating to help reduce friction, for efficient chip removal, and to help extend tool life
  • Round shanks, for use on a variety of tool-holding systems
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Maxodeals 2.48 No No No

Why settle for shallow holes when your project demands precision at depth? The Dormer A940 is a powerhouse designed specifically for those demanding, deep-bore applications where standard jobber bits simply fail. By utilizing a cobalt-infused high-speed steel, this bit strikes that elusive balance between extreme hardness and the toughness required to tackle much harder substances without snapping. I was particularly impressed by the 130-degree special point, which helps center the bit perfectly and takes the punishing pressure off the cutting edges. Even with the extra length, the AlCrN coating ensures chip removal stays efficient by reducing friction. Whether you are using a specialized holder or a standard setup, the round shank design makes this a versatile addition to any serious machining toolkit.

What We Like
Cobalt steel construction
Extra-long reach
Reduced friction coating
130-degree point
Efficient chip removal

uxcell 29pcs Cobalt Drill Bit Set 29 Sizes 1/16"-1/2" Drilling Dia M35 Twist Drills Hex Shank Bits for Steel, Aluminum, Copper, Soft Alloy Steel, Wood...

uxcell M35 Cobalt Twist Drill Bit Set

UXCELL A23030300UX1547

Reviews for UXCELL (PM Score)

0.0 PM Score
Buy on Amazon
  • 99pcs Drill Bits Include: 11pcs of each size( 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/35", 11/64", 3/16", 13/64", 7/32", 15/64", 1/4", 17/64", 9/32", 19/64", 5/16", 21/64", 11/32", 3/64", 3/8", 25/64", 13/32", 27/64", 19/32", 29/64", 15/64", 31/64", 1/2") drilling dia M35 straight round shank twist drills, can accommodate a wide range of drilling needs.
  • M35 Twist Drill Bit: Made from M35 cobalt material which has the characteristic of high hardness and durability. The cobalt material gives the bit superior wear resistance and overall toughness, making it great for long-term use in a variety of drilling applications.
  • Quick and Clean Drilling: The external point angle design of this cobalt twist drill bit allows for fast and efficient drilling, with effective chip removal to prevent clogging, perfect for a range of materials including metal, wood, and plastic.
  • Wide Applications: This cobalt twist drill bit is suitable for a variety of drilling applications, including metalworking, woodworking, and plastic fabrication. It is great for use with harder materials such as stainless steel, titanium, cast iron, malleable iron, and other alloys, wood, and plastic, and is well-suited for both DIY and professional use.
  • Note: Please add coolant when drilling continuously at high speed, the working life of the twist drill bits can be largely prolonged by proper usage. To ensure optimal performance and longevity, it is important to use proper drilling techniques when using this cobalt twist drill bit.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amadeo City 9.87 Yes Yes Yes

Most people assume a standard drill bit set is a one-size-fits-all solution until they try to pierce stainless steel or titanium. The uxcell 29-piece set changes that equation by utilizing M35 cobalt, a material specifically chosen for its high hardness and exceptional wear resistance. During testing, the external point angle design proved vital, allowing for efficient chip removal that prevents the frustrating clogging common in softer bits. Whether you are working through aluminum, copper, or even tougher alloys like cast iron, these bits maintain their edge far longer than high-speed steel alternatives. Just remember to use a coolant when drilling at high speeds to protect that cobalt integrity. It is a professional-grade toolkit that bridges the gap between hobbyist DIY and serious metalworking.

What We Like
M35 cobalt material
High wear resistance
Efficient chip removal
Versatile material compatibility
29 essential sizes

6 Pcs, #43 Cobalt Gold Heavy Duty Jobber Length Drill Bit, Drill America, D/Aco43, Number Of Flutes: 2. Cutting Direction: Right Hand, Flute Length: 1...

Drill America Cobalt Gold Heavy Duty Jobber Drill Bits

DRILL AMERICA D/ACO43

Reviews for DRILL AMERICA (PM Score)

0.0 PM Score
Buy on Amazon
  • Size: #43. Material: Cobalt. Finish: Gold.
  • Flute Length: 1-1/4". Overall Length: 2-1/4".
  • Shank Type: Round. Style: Jobber.
  • Cutting Angle: 135. Point Type: Split Point.
  • Number of Flutes: 2. Cutting Direction: Right Hand
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
SMARTNSAVE 8.07 No No No

Drill America delivers a serious upgrade to your metalworking toolkit with these #43 cobalt gold heavy-duty jobber length bits. I found the split point design and 135-degree cutting angle to be the real game-changers here, as they prevent the bit from walking and ensure a much cleaner entry into tough materials. Since these are crafted from cobalt with a distinct gold finish, they handle the heat of high-friction drilling far better than standard steel bits. The two-flute, right-hand cutting direction is standard for precision work, and the 1-1/4 inch flute length provides plenty of clearance for chip evacuation. Whether you are working in a professional shop or tackling a demanding home project, this six-piece set offers the durability you need for consistent, professional results.

What We Like
Durable cobalt construction
Precision split point
135-degree cutting angle
Heat resistant finish
Two flute design
Buying Guide

A Guide to Selecting the Best Round Short Drill Bits

A Guide to Selecting the Best Round Short Drill Bits

Material Composition and Hardness

The most critical decision when selecting a short drill bit is the material from which it is forged. For general-purpose tasks in softwoods or plastics, High-Speed Steel (HSS) provides a cost-effective solution with decent durability. However, if your project involves drilling through stainless steel, cast iron, or hardened alloys, you must look toward Cobalt-alloy bits. Cobalt bits are designed to withstand the intense heat generated by friction in harder metals without losing their edge temper. For extreme precision or industrial-grade applications, Tungsten Carbide bits are the gold standard. They offer unmatched hardness and wear resistance, though they are more brittle and require specialized tooling to prevent shattering.

Shank Geometry and Compatibility

Since round short drill bits are often used in specialized machinery or precision hand drills, the shank design is a vital compatibility factor. Most bits feature a cylindrical round shank, but you must ensure the diameter matches your drill chuck exactly. Some high-end short bits may feature a reduced shank, allowing a larger diameter bit to fit into a smaller standard chuck. Always verify whether you need a straight shank for a standard three-jaw chuck or if your specific application requires a specialized mounting style. Because short bits are often used for high-speed drilling, a concentric, perfectly centered shank is essential to prevent vibration, which can ruin a precision hole.

Flute Design and Chip Evacuation

The 'round' nature of these bits refers to their cylindrical profile, but the efficiency of the tool is determined by the flutes. The flutes are the grooves that spiral around the bit to pull debris out of the hole. In short bits, chip evacuation is a unique challenge because the space between the tip and the surface is so small. Look for bits with deep, well-defined flutes if you are drilling deep into a small diameter hole. For metalworking, a spiral flute design helps pull hot metal chips away from the cutting edge, preventing the bit from 'clogging' and overheating. If you are working with softer materials like wood, a sharper, more aggressive flute geometry will prevent tearing and splintering.

Point Angle and Cutting Geometry

Not all drill tips are created equal. The point angle—the angle of the cutting tip—determines how the bit engages the material. A standard 118-degree point is versatile for most general drilling. However, if you are working with harder metals, a 135-degree split-point design is superior. A split point is self-centering, meaning the bit won't 'walk' or wander across the surface of your workpiece when you start the hole. This is particularly important for short bits, as their high rigidity makes them perfect for precision starts, and a split point maximizes that accuracy by eliminating the need for a center punch in many scenarios.

Recommendation Logic

When choosing your final set, follow this hierarchy: First, identify your substrate (Metal vs. Wood). If metal, prioritize Cobalt over HSS. Second, assess your workspace clearance. If you are working inside a housing or a tight jig, prioritize the shortest possible flute length to maximize rigidity. Finally, prioritize bit geometry. If accuracy is your primary goal, always opt for a split-point tip to ensure the hole is placed exactly where intended without lateral movement.

Ready to choose?

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

Frequently Asked Questions

Quick answers about Round Short Drill Bits before you buy.

Round short drill bits, often referred to as spade or paddle bits, feature a flat, circular cutting head designed for rapid material removal and creating clean, wide holes in wood or soft plastics.

The shorter shank provides increased rigidity and reduces wobbling, which is essential for maintaining precision and preventing the bit from snapping under high torque.

Standard round spade bits are designed for wood and soft composites. For metal, you should look for specialized twist bits or step bits to avoid dulling the cutting edges.

To ensure a clean exit hole, place a scrap piece of wood tightly against the back of your workpiece to act as a backing board.

Because these bits have a high surface area contact, they perform best at moderate speeds. Running them too fast can cause excessive friction and heat buildup.

Most round short bits feature a standard hex shank, making them compatible with both traditional chuck drills and impact drivers, though a standard drill offers better control for precision tasks.

If you notice increased smoke, a change in the sound of the motor, or if you have to apply significantly more pressure to penetrate the material, it is time to replace the bit.
Research & Insights

Our Analysis of Round Short Drill Bits

22,944 Reviews Analyzed
52 Products Evaluated
5.9 Avg PM Score
10 Brands Ranked

Top 10 Round Short Drill Bits Brands on Amazon

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

  1. 01 Drill America 26 (51%)
  2. 02 Chicago Latrobe 14 (27.5%)
  3. 03 Ohamtes 3 (5.9%)
  4. 04 Bosch 2 (3.9%)
  5. 05 Amoolo 1 (2%)
  6. 06 Cleveland 1 (2%)
  7. 07 Comoware 1 (2%)
  8. 08 Dewalt 1 (2%)
  9. 09 Dormer 1 (2%)
  10. 10 Precision Twist Drill 1 (2%)

What Our Analysis Found

We've carried out a comprehensive analysis of 22,944 reviews on Round Short 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 Round Short Drill Bits priced around $55.48.

Our team of expert editors reviewed these high-quality items and handpicked the top 14 Round Short 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 Round Short Drill Bits to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.