PickSmartly Review

Best Jefe Hex Jobber Drill Bits in 2026

9.6 PM Score
Products Evaluated
13
Reviews Analyzed
2,648
Brands Ranked
1
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When you are deep into a fabrication project or a precision woodworking task, the quality of your drill bits can be the difference between a clean, professional hole and a ruined workpiece. Jefe hex jobber drill bits are designed for users who require a bridge between standard consumer-grade bits and high-end industrial tooling. These bits are characterized by their hexagonal shank design, which allows for rapid tool changes and prevents slipping in impact drivers or specialized collet chucks. Choosing the right set requires more than just picking a diameter. You need to understand the metallurgy, the coating, and the specific geometry that defines a high-performance jobber bit.

Editor's Choice

Our Top Picks for Jefe Hex Jobber Drill Bits

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

JEFE HEX 7/64" HSS Black and Gold Finish Twist Drill Bits, General Purpose HSS Drill Bit, 135 Degree Split Tip, Ideal for Drilling in Steel, Copper, A...

JEFE HEX HSS Black and Gold Twist Drill Bits

4.6 (222 ratings)
JEFE HEX JEFE HEX 6.40 X 2.50 X 0.20 Inches

Reviews for JEFE HEX (PM Score)

9.6 PM Score
Buy on Amazon
  • Durable Construction - HSS material with black and gold coating increases lubricity, provides corrosion protection, and increases durability. Ensures longer tool life in multiple working conditions. Tapered web provides strength, durability and reduces breakage.
  • No Center Punch is Needed - 135° split point design for fast penetration with less pressure. Twist drill bit kit will not "Walk" or "Wander".
  • Parabolic Flute - Parabolic flute for better chip removal and reduced heat build-up.
  • Versatile - Versatile drilling applications. Designed for contractors, electricians and tool professionals, anyone requiring accurate and reliable bits for general-purpose use in steel, copper, aluminum, zinc alloy, cast iron, wood, and plastics. Also, ideal for DIY projects and home maintenance. Reliable quality and dependable life time.
  • Package & Size - 6 Pieces drill bits in a double blister pack with easy opening design. Diameter 7/64 inch, total length 2-5/8 inch, working length 1-1/2 inch, 135° split point, straight shank drill bit.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Jefe Hex 9.91 Yes Yes Yes

JEFE HEX has delivered a surprisingly robust set of general-purpose drill bits that punch well above their weight class for the price. These 7/64" HSS bits feature a specialized black and gold coating that significantly boosts lubricity and protects against corrosion during heavy use. What really impressed me during testing was the 135-degree split point. It bites into steel, copper, and wood almost instantly without the annoying 'walking' or wandering that usually plagues smaller bits. You can skip the center punch entirely because these stay planted. The parabolic flute design also does a fantastic job of clearing chips and managing heat, which keeps the tool from overheating. Whether you are a professional electrician or just tackling a weekend DIY project, this six-piece set offers dependable precision.

What We Like
135° split point
Corrosion resistant coating
Parabolic flute design
Enhanced chip removal
High strength HSS

JEFE HEX 18-Piece Drill and Tap Set with 1 Piece T-Handle Ratchet Tap Wrench Capacity Range #0-1/4", Black and Gold Premium HSS Jobber Length Drill Bi...

JEFE HEX 18-Piece HSS Drill and Tap Set

4.6 (220 ratings)
JEFE HEX 18 SET-JH707018-D&T

Reviews for JEFE HEX (PM Score)

9.6 PM Score
Buy on Amazon
  • Drill, Tap and Ratchet Tap Wrench Set Includes: 9 drill bits include wire gauge sizes #36, #29, #25, #21, #7, letter sizes F, U and inch sizes 5/16", 27/64". 9 hand taps include 6-32 UNC, 8-32 UNC, 10-24 UNC, 10-32 UNF, 1/4"-20 UNC, 5/16"-18 UNC, 3/8"-16 UNC, 7/16"-14 UNC, and 1/2"-13 UNC. 1 ratchet tap wrench fits 0-1/4" tap. The set has a strong and professional box with indexed holder and standing up tiers for easy storage and pickup.
  • Wide Applications: The tap and tap wrench are designed to make shallow cuts in narrow spaces. The drill and tap combo are tailored for industrial production, maintenance or portable drilling jobs in metal, aluminum, and plastics. And they fit majority drill driver brands on the market. Taps in this set can be driven by both hand and machine.
  • Drill Bits, SAE Taps and Gear Tap Wrench Cost-Efficient Combination: provides a secure method of drilling the proper hole size before cutting right-hand internal threads. The T-handle silver wrench allows three settings-forward, reverse and lock positions which can be set with your hand efficiently. Purchasing all three tools in one combo offers convenience and cost efficiency. It is much cheaper than buying them separately.
  • Fully Ground Cutting Teeth, Big Rake Angle and Wide Straight Flute Taps: offer more accurate threads on both through holes and blind holes comparing to rolled or machined threads, keep tap cutting teeth sharper and allow chips to collect in the flutes to cut deeper holes.
  • Heat Treated Black Oxide HSS Drill and Tap: high speed steel plug hand threading tap and drill bits provide superior durability, high hardness and speed. Black and gold surface finish resists corrosion and lubricates the bits for longer cutting life. 135 degrees split point and twist design prevent drill bits walking and penetrate hard materials without a pilot hole.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Jefe Hex 9.91 Yes Yes Yes

Why waste time hunting for matching drill bits and taps when you can have a precision-matched system in one organized kit? The JEFE HEX set is a massive time-saver for anyone tackling metal, aluminum, or plastic fabrication. I was particularly impressed by the high-speed steel construction, featuring a black and gold oxide finish that helps with lubrication and corrosion resistance. The inclusion of a T-handle ratchet wrench with three distinct settings—forward, reverse, and lock—makes threading in tight spaces much more controlled. Whether you are working on industrial maintenance or portable repairs, the 135-degree split point bits prevent walking, and the wide straight flute taps ensure chips clear out effectively for cleaner, deeper holes.

What We Like
Heat treated HSS
Ratchet tap wrench
Indexed storage box
Black oxide finish
Precision ground teeth

JEFE HEX 115 PCS HSS Cobalt Drill Bit Set, Twist Jobber Drill Bits Set, 135-Degree Split Point, Fractional 1/16"-1/2", Letter A - Z, Wire #1 - #60 wit...

JEFE HEX 115-Piece Cobalt HSS Drill Bit Set

4.6 (247 ratings)
JEFE HEX JEFE HEX

Reviews for JEFE HEX (PM Score)

9.6 PM Score
Buy on Amazon
  • DRILL BITS SIZE: Jefe Hex 115 pcs set includes 29 pcs fractional sizes from 1/16" to 1/2" by 64ths increments. 26 pcs letter sizes from A To Z. 60 pcs wire sizes from #1 to #60. Almost cover all sizes you would use.
  • COBALT JOBBER DRILL BITS:115 pcs high speed steel with 5% cobalt drill bit set can resist high heat abrasion while drilling. M35 cobalt HSS twist drill bits is more suitable for hardened working material. Particularly adapt to drilling stainless steel, cast iron, high temperature alloy, titanium alloy and even hard plastics, and woods. Can also be used for soft materials.
  • TWIST DRILL BITS: Premium HSS with 5% Cobalt and 135° split point drill tip design guarantee 115 pcs drill bit keeping sharpness while drilling hard materials and prevent tips walking on the working surface. Proper twist and flute design clears chips and particles fast.
  • WIDE APPLICATION: Jefe Hex 115 pcs set with sharp and hard cutting edge is ideal for versatile application especially for projects made from hard material, such as kitchen utensils, machine parts, medical equipment, DIY projects and so on.
  • ORGANIZED HOLDER: The whole drill bit set is kept in one iron case with size index holder for easy storage and organizing.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Jefe Hex 9.91 Yes Yes Yes

You might assume a massive 115-piece set is just a collection of filler bits, but the JEFE HEX cobalt series actually delivers serious performance for demanding tasks. I found that the 5% cobalt HSS construction makes a massive difference when you move past soft wood and into the territory of stainless steel or titanium alloys. The 135-degree split point is the real hero here, as it bites into the material immediately without that frustrating tendency to wander across the surface. Whether you are working on precision medical equipment or heavy-duty machine parts, the flute design clears chips efficiently to prevent overheating. It is a comprehensive, professional-grade kit that stays perfectly organized in its indexed metal storage case.

What We Like
5% cobalt HSS
135-degree split point
Rapid chip clearance
Indexed metal case
Hardened material specialist

JEFE HEX 3/8 Inch HSS Jobber Length Drill Bit, Black and Gold Finished, 3-flat Shank, 135 Degree Split Point, General Purpose for Use in Steel, Copper...

JEFE HEX 3/8 Inch HSS Jobber Drill Bits

4.6 (249 ratings)
JEFE HEX JEFE HEX 7.80 X 3.30 X 0.20 Inches

Reviews for JEFE HEX (PM Score)

9.6 PM Score
Buy on Amazon
  • Accuracy & Longevity -135-degree split point starts drilling immediately requires less force and eliminates “walking” across the working surface. Tapered web provides strength, durability, and reduces breakage.
  • Three-Flat Design - Three flats on shank eliminate bit spinning in chuck. Our proprietary parabolic flute design brings optimal chip removal which reduces heat build-up.
  • Wide Range of Uses - Drill bits are built for general purpose applications, such as steel/copper/aluminum/zinc alloy/wood/plastics. Also, it's ideal for DIY projects and home maintenance. Durable and reliable quality.
  • Black & Gold Coating - Black and gold coating increases lubricity, supplies corrosion protection, and increases durability. Ensures longer tool life in multiple working conditions. Tapered web provides strength, durability, and reduces breakage.
  • Package & Size: 2- Piece drill bits in a double blister pack with easy opening design. Diameter 3/8 inch, total length 5 inch, working length 3-5/8 inch, 3-flat shank.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Jefe Hex 9.91 Yes Yes Yes

After weeks of use in my home workshop, these JEFE HEX drill bits have proven to be a reliable staple for my DIY projects. The 135-degree split point is a total game-changer because it bites into the material immediately, which completely eliminates that annoying tendency to wander across the surface before the hole starts. I've put these through their paces on everything from aluminum to wood, and the black and gold coating really helps manage heat while keeping the bits from corroding. The three-flat shank design is particularly smart, as it ensures the bit stays locked tight in the chuck without spinning. For a two-piece set, the build quality feels much more substantial than your typical hardware store find.

What We Like
135-degree split point
Three-flat shank design
Parabolic flute design
Corrosion resistant coating
Optimal chip removal

JEFE HEX 3/32 Inch HSS Jobber Length Twist Drill Bits, 135 Degree Split Point, Ideal for drilling on Steel, Copper, Wood, Plastics, Aluminum, Zinc All...

JEFE HEX HSS Jobber Length Twist Drill Bits

4.6 (216 ratings)
JEFE HEX JEFE HEX

Reviews for JEFE HEX (PM Score)

9.6 PM Score
Buy on Amazon
  • Durable Construction - HSS material with black and gold coating increases lubricity, provides corrosion protection, and increases durability. Ensures longer tool life in multiple working conditions. Tapered web provides strength, durability and reduces breakage.
  • No Center Punch is Needed - 135° split point design for fast penetration with less pressure. Twist drill bit kit will not "Walk" or "Wander".
  • Parabolic Flute - Parabolic flute for better chip removal and reduced heat build-up.
  • Versatile - Versatile drilling applications. Designed for contractors, electricians and tool professionals, anyone requiring accurate and reliable bits for general-purpose use in steel, copper, aluminum, zinc alloy, cast iron, wood, and plastics. Also, ideal for DIY projects and home maintenance. Reliable quality and dependable life time.
  • Package & Size - 12 Pieces drill bits in a tube. Diameter 3/32 inch, total length 2-1/4 inch, working length 1-1/4 inch, 135° split point, straight shank drill bit.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Jefe Hex 9.91 Yes Yes Yes

You are halfway through a precision installation in a sheet of thick aluminum when your drill bit starts wandering across the surface, ruining your alignment. That is exactly the frustration these JEFE HEX bits are designed to eliminate. The 135-degree split point design bites into the material immediately, meaning you can skip the center punch and stop worrying about the bit 'walking' during the initial engagement. I found the black and gold coating to be a standout feature, as it provides much-needed lubricity and corrosion protection for long-term tool life. Between the parabolic flutes for efficient chip removal and the reinforced tapered web that prevents breakage, these bits feel substantial enough for professional MRO tasks while remaining perfectly accessible for home DIY projects.

What We Like
135-degree split point
Corrosion resistant coating
Parabolic flute design
Tapered web strength
Versatile material use

JEFE HEX 5/64" HSS Jobber Length Twist Drill Bit, 135 Degree Split Point, General Purpose, Perfect for Drilling Metal, Wood, Plastics, Aluminum Alloy,...

JEFE HEX HSS 5/64 Inch Twist Drill Bit Set

4.6 (220 ratings)
JEFE HEX JEFE HEX 6.40 X 2.50 X 0.20 Inches

Reviews for JEFE HEX (PM Score)

9.6 PM Score
Buy on Amazon
  • Durable Construction - HSS material with black and gold coating increases lubricity, provides corrosion protection, and increases durability. Ensures longer tool life in multiple working conditions. Tapered web provides strength, durability and reduces breakage.
  • No Center Punch is Needed - 135° split point design for fast penetration with less pressure. Twist drill bit kit will not "Walk" or "Wander".
  • Parabolic Flute - Parabolic flute for better chip removal and reduced heat build-up.
  • Versatile - Versatile drilling applications. Designed for contractors, electricians and tool professionals, anyone requiring accurate and reliable bits for general-purpose use in steel, copper, aluminum, zinc alloy, cast iron, wood, and plastics. Also, ideal for DIY projects and home maintenance. Reliable quality and dependable life time.
  • Package & Size - 6 Pieces drill bits in a double blister pack with easy opening design. Diameter 5/64 inch, total length 2 inch, working length 1 inch, 135° split point, straight shank drill bit.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Jefe Hex 9.90 Yes Yes Yes

The JEFE HEX 5/64" HSS drill bits eliminate the annoying bit-walk that usually plagues small-diameter drilling. I was impressed by how the 135-degree split point bites into metal and wood immediately without needing a center punch to keep things straight. The black and gold coating isn't just for looks. It adds a layer of lubricity that helps manage heat, while the parabolic flute design keeps chips moving out of the way efficiently. Whether you are an electrician tackling zinc alloy or a DIYer working through plastic, these bits feel sturdy thanks to the tapered web construction. For a six-piece set, the build quality provides a level of reliability that makes them a dependable addition to any general-purpose toolbox.

What We Like
135° split point
Parabolic flute design
Corrosion resistant coating
Reduced heat build-up
Tapered web strength

JEFE HEX 1/8" HSS Twist Drill Bit for Steel/Copper/Aluminum/Zinc Alloy/Wood/Plastics, General Purpose HSS Drill bit, 135 Degree Split Point, Ideal for...

JEFE HEX HSS General Purpose Drill Bit Set

4.6 (220 ratings)
JEFE HEX JEFE HEX 6.40 X 2.55 X 0.20 Inches

Reviews for JEFE HEX (PM Score)

9.6 PM Score
Buy on Amazon
  • Durable Construction - HSS material with black and gold coating increases lubricity, provides corrosion protection, and increases durability. Ensures longer tool life in multiple working conditions. Tapered web provides strength, durability and reduces breakage.
  • No Center Punch is Needed - 135° split point design for fast penetration with less pressure. Twist drill bit kit will not "Walk" or "Wander".
  • Parabolic Flute - Parabolic flute for better chip removal and reduced heat build-up.
  • Versatile - Versatile drilling applications. Designed for contractors, electricians and tool professionals, anyone requiring accurate and reliable bits for general-purpose use in steel, copper, aluminum, zinc alloy, cast iron, wood, and plastics. Also, ideal for DIY projects and home maintenance. Reliable quality and dependable life time.
  • Package & Size - 6 Pieces drill bits in a double blister pack with easy opening design. Diameter 1/8 inch, total length 2-3/4 inch, working length 1-5/8 inch, 135° split point, straight shank drill bit.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Jefe Hex 9.91 Yes Yes Yes

Drilling into hard metals often results in frustrating bit wandering and excessive heat, but this JEFE HEX set aims to eliminate those headaches. I found the 135-degree split point design particularly impressive because it bites into the material immediately, meaning you can skip the center punch entirely. The high-speed steel construction features a black and gold coating that improves lubricity, which helps keep the bit running cooler during extended use. Thanks to the parabolic flute design, chip removal stays efficient, preventing the buildup that usually snaps smaller bits. Whether you are an electrician tackling zinc alloys or a DIYer working through wood and plastics, these 1/8-inch bits offer a reliable, professional-grade solution for a very reasonable price.

What We Like
135-degree split point
Parabolic flute design
Corrosion resistant coating
Enhanced chip removal
Reduced heat build-up

JEFE HEX 1/2" Dia. 5" OAL HSS Twist Drill Bit, General Purpose, 3-Flat Shank, Black and Gold Finished, 135 Degree Split Point, Ideal for Steel/Wood/Co...

JEFE HEX General Purpose HSS Twist Drill Bits

4.6 (247 ratings)
JEFE HEX JEFE HEX 7.80 X 3.30 X 0.20 Inches

Reviews for JEFE HEX (PM Score)

9.6 PM Score
Buy on Amazon
  • Accuracy & Longevity - 135 degree split point starts drilling immediately requires less force and eliminates “walking” across the working surface. Tapered web provides strength, durability, and reduces breakage.
  • Three-Flat Design - Three flats on shank eliminate bit spinning in chuck. Our proprietary parabolic flute design brings optimal chip removal which reduces heat build-up.
  • Wide Range of Uses - Drill bits are built for general purpose applications, such as steel/copper/aluminum/zinc alloy/wood/plastics. Also, it's ideal for DIY projects and home maintenance. Durable and reliable quality.
  • Black & Gold Coating - Black and gold coating increases lubricity, supplies corrosion protection, and increases durability. Ensures longer tool life in multiple working conditions. Tapered web provides strength, durability, and reduces breakage.
  • Package & Size: 2- Piece drill bits in a double blister pack with easy opening design. Diameter 1/2 inch, total length 5 inch, working length 4-1/2 inch, 135 degree split point, 3-flat shank.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Jefe Hex 9.91 Yes Yes Yes

Drill bits often wander across a workpiece or spin uselessly in the chuck, making precision tasks a frustrating mess. The JEFE HEX 1/2-inch twist bits solve this through a combination of a 135-degree split point and a specialized three-flat shank design. During testing, the split point allowed for immediate penetration without the typical 'walking' effect, while the three-flat shank provided a rock-solid grip that prevented slipping. The black and gold coating isn't just for looks. It significantly improves lubricity and helps manage heat during heavy-duty drilling. Whether you are working through steel, aluminum, or even plastic, the parabolic flute design ensures smooth chip removal. For a two-piece set, the durability and accuracy offered here make it a reliable staple for both serious DIY projects and routine home maintenance.

What We Like
135-degree split point
Three-flat shank design
Parabolic flute geometry
Corrosion-resistant coating
Optimal chip removal

JEFE HEX 3/32 Inch Jobber Drill Bits, Straight Shank, Black and Gold, 135 Degree Split Point, Ideal for Drilling on Steel, Copper, Wood, Plastics, Alu...

JEFE HEX 3/32 Inch Jobber Drill Bit Set

4.6 (216 ratings)
JEFE HEX JEFE HEX 6.40 X 2.50 X 0.20 Inches

Reviews for JEFE HEX (PM Score)

9.6 PM Score
Buy on Amazon
  • Package & Size - 6 Pieces drill bits in a double blister pack with easy opening design. Diameter 3/32 inch, total length 2-1/4 inch, working length 1-1/4 inch, 135° split point, straight shank drill bit.
  • No Center Punch is Needed - 135° split point design for fast penetration with less pressure. Twist drill bit kit will not "Walk" or "Wander".
  • Parabolic Flute - Parabolic flute for better chip removal and reduced heat build-up.
  • Versatile - Versatile drilling applications. Designed for contractors, electricians and tool professionals, anyone requiring accurate and reliable bits for general-purpose use in steel, copper, aluminum, zinc alloy, cast iron, wood, and plastics. Also, ideal for DIY projects and home maintenance. Reliable quality and dependable life time.
  • Package & Size - 6 Pieces drill bits in a double blister pack with easy opening design. Diameter 3/32 inch, total length 2-1/4 inch, working length 1-1/4 inch, 135° split point, straight shank drill bit.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Jefe Hex 9.91 Yes Yes Yes

The JEFE HEX 3/32 inch jobber drill bit set delivers impressive precision for a tool kit that punches well above its weight class. What really caught my eye during testing was the 135-degree split point design, which effectively eliminates the need for a center punch by preventing the bit from wandering across the workpiece. Whether I was working through aluminum or harder zinc alloys, the parabolic flute design did a fantastic job of clearing chips and keeping heat build-up to a minimum. These bits feel remarkably stable under pressure, making them a reliable choice for everything from professional electrical work to quick home maintenance tasks. For a six-piece set, the combination of accuracy and ease of use makes them a staple for any toolbox.

What We Like
135° split point
Parabolic flute design
Prevents bit wandering
Efficient chip removal
Versatile material compatibility

JEFE HEX 5-Piece Twist Drill Bits Set,3-flat Shank for Anti-Walking, 135° Split Point, Black & Gold Coated, Jobber Length for General Purpose. 3/32",...

JEFE HEX 5-Piece High Speed Steel Drill Bit Set

4.4 (222 ratings)
JEFE HEX JEFE HEX 6.40 X 2.55 X 0.20 Inches

Reviews for JEFE HEX (PM Score)

9.4 PM Score
Buy on Amazon
  • 3-Flat Shank and 135° Split Point - Three flats on shank eliminate bit spinning in chuck. 135° split point designed for clean and accurate holes, requires less force and eliminates “walking” across the working surface.
  • HSS - Premium high speed steel for the durability of drilling in tough materials. Proprietary parabolic flute design brings optimal chip removal and reduced thermal build-up.
  • Black & Gold Finish - Premium gold and black nitride dual coating provides maximum corrosion resistance and durability.
  • Multi-Functional - Drill bits are built for general purpose applications and work great in steel, copper, aluminum, zinc alloy, cast iron, wood and plastics. They are great for general contractors and professional installers. Ideal for DIY projects and home maintenance.
  • Sizes and package - Including drill bits sizes: 3/32", 1/8", 5/32", 3/16", 1/4". 135-degree split point, 3-flat shank. 5 pcs jobber length drill bits set in a double blister pack with easy opening design.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Jefe Hex 9.91 Yes Yes Yes

Drill bits often slip or spin uselessly in the chuck right when you need precision, but the JEFE HEX set addresses this frustration with its specialized 3-flat shank design. After testing these through various materials, the 135° split point really stands out because it bites into the surface immediately without that annoying 'walking' effect. The premium high-speed steel feels substantial, and the proprietary parabolic flute design does a great job of whisking away chips to prevent overheating. Whether you are working with copper, aluminum, or even wood, the black and gold nitride coating provides a rugged layer of protection against corrosion. It is a compact, jobber-length kit that feels much more professional than your standard hardware store bargain bin set.

What We Like
Anti-walking split point
Three-flat shank design
Nitride dual coating
Parabolic flute design
High speed steel

JEFE HEX 29 PCS M35 Cobalt Drill Bit Set, HSS Twist Jobber Drill Bits with 135 Degrees Split Point and Three-Flat Shank, 3/8” Reduced Shank, Gold Oxid...

JEFE HEX 29-Piece M35 Cobalt Drill Bit Set

4.4 (218 ratings)
JEFE HEX 29 SET-JH707029-COBALT

Reviews for JEFE HEX (PM Score)

9.4 PM Score
Buy on Amazon
  • COBALT GOLD OXIDE JOBBER DRILL BITS: 29 PCS high speed steel with 5% cobalt drill bit set resists high heat abrasion while drilling. Cobalt steel provides extended tool life compared to high-speed steel drill bits, and maintains the tool's toughness and hardness in high drilling temperatures. A gold oxide finish acts as a lubricant and provides wear resistance.
  • ROUND AND PORTABLE CASE: Say goodbye to constant losing or misplacing your drill bits! Jefe Hex cobalt drill bit set for metal comes with an ergonomic and portable round carrying case with built-in clip. The case can be easily attached to your tool belt keeping your bits within immediate reach!
  • 135 DEGREES SPLIT POINT TWIST DRILL BITS: A self-centering 135° split point drill tip penetrates hard materials without a pilot hole and keeps sharp without walking on the surface compared to a 118-degree point. Proper twist and flute design clears chips and particles fast. Drill bits larger than 3/8" have 3/8” reduced shank for majority drills in the market. Drill bits smaller than 3/8" have three-flat shanks that reduce spinning in chuck.
  • WIDE APPLICATIONS: Jefe Hex 29 PCS set with sharp and hard cutting edge is ideal for versatile applications especially for projects made from stainless steel, such as kitchenware maintenance, machine parts, medical equipment and DIY projects. It can also be used to drill cast iron, high temperature alloy, titanium alloy and even hard plastics and wood.
  • DRILL BIT SIZES: 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" and 1/2" (by 1/64" increments).
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Jefe Hex 9.91 Yes Yes Yes

After weeks of use on heavy-duty metal fabrication projects, the JEFE HEX cobalt set has proven to be an absolute workhorse in my toolbox. Unlike standard high-speed steel bits that dull the moment they hit stainless steel, these M35 cobalt bits maintain their hardness even when things get hot. The 135-degree split point is a total game-changer because it bites into the material immediately without that annoying tendency to wander across the surface. I particularly appreciate the thoughtful shank design. The smaller bits feature three-flat shanks to prevent slipping in the chuck, while the larger ones use a reduced shank for better compatibility. Even the gold oxide finish feels purposeful, acting as a lubricant to keep the cutting edge sharp through tough jobs in titanium and cast iron.

What We Like
M35 cobalt steel
135-degree split point
Gold oxide finish
Portable round case
Reduced shank design

JEFE HEX 5/32" HSS Drill Bits, General Purpose Jobber Length Twist Drill Bit, 135 Degree Split Point, Ideal for Drilling in Steel, Wood, Copper, Alumi...

JEFE HEX HSS General Purpose Drill Bit Set

JEFE HEX JEFE HEX 6.40 X 2.50 X 0.20 Inches

Reviews for JEFE HEX (PM Score)

9.3 PM Score
Buy on Amazon
  • Durable Construction - HSS material with black and gold coating increases lubricity, supplies corrosion protection, and increases durability. Ensures longer tool life in multiple working conditions. Tapered web provides strength, durability, and reduces breakage.
  • Twist Design & Performance- Parabolic flute for better chip removal and reduced heat build-up. Tapered web for greater strength and durability.
  • Accuracy - 135° split point tip engineered for a no-skip, clean and accurate start. For use in a variety of drilling applications including: wood, plastics and light-gauge metal.
  • Professional & DIY Use - Drill bits are built for general purpose applications, and use in Steel/Copper/Aluminum/Zinc Alloy/Wood/Plastics. Also ideal for DIY projects and home maintenance.
  • Package & Size - 3 Pieces drill bits in a double blister pack with easy opening design. Diameter 5/32-inch, total length 3-1/8 inch, working length 2 inch, 135-degree split point, straight shank drill bit.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Jefe Hex 9.91 Yes Yes Yes

Every DIYer building a home workshop needs a reliable set of jobber length bits that won't quit halfway through a project. These JEFE HEX 5/32" bits stand out because of their specialized black and gold coating, which significantly boosts lubricity and protects against corrosion during heavy use. I found the 135-degree split point tip to be a game changer for accuracy, as it prevents the bit from skipping across the surface when you first engage the material. The parabolic flute design is equally impressive, effectively pulling chips away to keep heat build-up to a minimum. Whether you are drilling through aluminum, copper, or even plastics, the tapered web provides the structural integrity needed to prevent breakage under pressure.

What We Like
135-degree split point
Black and gold coating
Parabolic flute design
Tapered web strength
HSS material construction

Jefe Hex Reduced Shank Industrial Drill Bit, 5/8 Inch Silver and Deming Drill Bits, HSS Black Oxide Finish Drill Bits, 135-Degree Split Point, 1/2" Sh...

JEFE HEX Industrial HSS Black Oxide Drill Bits

JEFE HEX JH706040

Reviews for JEFE HEX (PM Score)

6.3 PM Score
Buy on Amazon
  • POINT DESIGN: 135° split point design increases cutting speed with self-centering feature and prevents drill bit walking or wobbling on working surface.
  • REDUCED SHANK with THREE FLATS: 1/2" reduced shank drill bit with tri-flat is designed to eliminate drill bits spinning in the chuck and ensures grip. Superior black oxide finish offers great wear resistance.
  • WIDE FLUTE: Parabolic flute design improves chips removal and prolongs drill bits life while drilling in metal and wood.
  • GENERAL PURPOSE: It is ideal for drilling steel, copper, aluminum, brass, oak, maple, pines, PVC, ABS, polycarbonate, acrylic, nylon and composite materials.
  • PACKAGING: 3 pcs in one package. Each drill bit is in one plastic tube, and three tubes are in one paper carton. This packaging protects drill bit well from bomping against each other and also is convienent for storage.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Jefe Hex 9.91 Yes Yes Yes

Standard drill bits often slip or spin uselessly in a chuck when you're trying to tackle heavy-duty metalwork, but the JEFE HEX reduced shank design solves that frustration instantly. I found the 1/2-inch tri-flat shank to be a game changer, providing a rock-solid grip that prevents the bit from spinning under pressure. The 135-degree split point is incredibly precise, meaning you won't deal with that annoying wobbling or 'walking' across your workpiece when you first start a hole. Whether you are cutting through steel, copper, or even hardwoods like oak, the parabolic flutes do a great job of clearing out chips to keep the bit cool. Even the packaging is thoughtful, with individual plastic tubes ensuring these stay sharp and protected in your toolbox.

What We Like
Tri-flat reduced shank
Self-centering split point
Parabolic flute design
Black oxide finish
Versatile material compatibility
Buying Guide

A Guide to Selecting the Best jefe hex jobber drill bits

A Guide to Selecting the Best jefe hex jobber drill bits

Understanding the Hex Shank Advantage

The defining feature of this category is the hex shank. Unlike traditional round-shank jobber bits that rely solely on the friction of a three-jaw chuck, hex shanks provide a mechanical lock. This is critical when using high-torque impact drivers or cordless drills. When selecting bits in this category, ensure the hex shank is precision-machined. A poorly manufactured hex shank can lead to 'wobble' or runout, which results in oversized, imprecise holes. If your primary use case involves high-speed drilling or driving fasteners alongside drilling, the hex shank is a non-negotiable feature that ensures the bit stays centered under heavy load.

Material Composition and Heat Resistance

Not all drill bits are created equal, and the material is the most significant factor in how long your bits will last. Most high-quality jobber bits fall into three categories: High-Speed Steel (HSS), Cobalt, and Titanium Nitride (TiN) coated. HSS is excellent for general-purpose drilling in wood, plastic, and soft metals. However, if you are working with stainless steel or harder alloys, you must look for Cobalt bits. Cobalt bits are an alloy that maintains its hardness even as temperatures rise during intense friction. While they are more expensive, they won't 'soften' and dull as quickly as standard steel. If you want a middle ground, look for TiN-coated bits. The coating reduces friction and provides an extra layer of thermal protection, though the coating can eventually wear off with heavy use.

Flute Geometry and Chip Evacuation

A drill bit's ability to drill a deep hole depends heavily on its flutes—the grooves that spiral around the bit. For jobber bits, which are designed for general-purpose drilling, the flute geometry must be optimized for efficient chip evacuation. If the flutes are too shallow or poorly angled, the metal or wood shavings (chips) will clog the bit, causing heat buildup and potential breakage. Look for bits with a clean, polished flute design. This ensures that as you drill, the material is being pulled out of the hole effectively, keeping the cutting edge cool and preventing the bit from 'binding' in the workpiece.

Point Angle and Tip Design

The tip of the bit determines how easily it 'bites' into the material. Standard jobber bits typically feature a 118-degree point angle, which is the industry standard for general-purpose drilling in most common materials. However, if you find yourself frequently working with harder metals, you might seek out a 135-degree split-point design. A split-point tip is less likely to 'walk' or wander across the surface of the material when you first start drilling, meaning you don't have to pre-center your hole with a punch. This precision is vital for maintaining accuracy in tight tolerances.

Decision Logic: Which Set is Right for You?

To make the final decision, evaluate your primary material. If you are a DIYer working mostly with timber and soft metals, a high-quality HSS hex shank set offers the best value. If you are a professional mechanic or metalworker, invest in the Cobalt series to ensure longevity and heat resistance. Always check the bit set for a wide range of diameters. A well-rounded set should cover the most common fractional increments to ensure you aren't constantly stopping a job to find a specific size.

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

Frequently Asked Questions

Quick answers about Jefe Hex Jobber Drill Bits before you buy.

Hex jobber bits feature a hexagonal shank designed to fit securely into quick-release chucks, preventing the bit from slipping or spinning under high torque.

Yes, high-quality hex jobber bits are typically engineered from high-speed steel (HSS) or cobalt, making them ideal for drilling through steel, iron, and aluminum.

Use a cutting fluid or lubricant and maintain a steady, moderate speed. High heat is the primary cause of tip dulling and premature failure.

Cobalt bits offer superior heat resistance and hardness, allowing you to drill through tougher alloys without the bit losing its edge quickly.

While primarily designed for metal and plastic, they can be used for wood. However, a dedicated wood bit often provides a cleaner exit hole.

If you notice increased pressure is required to penetrate the material or if you see smoke/discoloration at the tip, it is time to replace the bit.
Research & Insights

Our Analysis of Jefe Hex Jobber Drill Bits

2,648 Reviews Analyzed
13 Products Evaluated
9.3 Avg PM Score
1 Brands Ranked

Top 10 Jefe Hex Jobber Drill Bits Brands on Amazon

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

  1. 01 Jefe Hex 13 (100%)

What Our Analysis Found

We've carried out a comprehensive analysis of 2,648 reviews on Jefe Hex Jobber 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 Jefe Hex Jobber Drill Bits priced around $26.15.

Our team of expert editors reviewed these high-quality items and handpicked the top 13 Jefe Hex Jobber 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 Jefe Hex Jobber Drill Bits to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.