10 Best Jobber Drill Bits Carbide
#1 Best Pick
Solid Carbide Drill Bits, 3mm C2/K20 Tungsten Carbide Jobber Drill Bits Straight Shank Drilling Tool for Metal Plastic 4pcs
Brand: Winfox
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- Twist Drill Bits: Drilling Diameter: 3mm / 0.118"; Flute Length: 22mm / 0.87"; Overall Length: 40mm / 1.57"; Cutting Hardness (Max.): HRC45.
- Material: Made from YG6/C2/K20 tungsten carbide, offering excellent toughness, hardness (HRA89), and wear resistance for efficient, high-speed cutting.
- Design: Spiral flute for rapid chip removal and sharp edges for smooth, glitch-free cuts.
- Wide Applications: Perfect for drilling non-ferrous metals, cast iron, stainless steel, aluminum, copper, alloy steel, plastic, and wood. Versatile, uncoated design suits a wide range of uses.
- Tips: For stability, use a longer chuck clamping length; if shorter, lower the feed rate and speed to reduce vibration and extend tool life.
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#2 Best Value
HUHAO Drill Bit Set 16Pcs Carbide Drill Bits Jobber Length for Hardened Metal, Aluminum Alloy, Concrete, Brick Wall and Wood Plastic with Metal Indexed Storage Case, Metric Shank Size 2mm-10mm
Brand: HUHAO
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- PLEASE NOTE: The shank diameter of this twist drill bit set is metric millimeters:2mm-10mm
- PERFECT DRILL BITS: These drill bits are precision ground for a smooth surface finish and high grinding accuracy to ensure a smooth, precise drilling experience. The universal round shank makes them compatible with a wide range of toolholding systems for a secure, tight fit.
- 135° Standard Dual Rear Blade Angle Design: 135° split design allows for fast cutting and auto-centering, reducing the need for over-pressure and tool walking. The torsion design helps remove chips faster, ensuring a cleaner, more efficient drilling process.
- Enhanced HSS Alloy Material: These drills are made from premium HSS alloy with superior wear resistance and durability. Industrial grade 4241 high speed steel ensures a long-lasting cutting edge for a variety of materials including hardened metals, stainless steel, cast iron and more.
- Set Contents: This drill kit includes a variety of sizes from 2MM to 10MM to meet a wide range of drilling needs. The drill bit set comes in a metal indexed storage case for easy storage and organization.
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#3 Budget Pick
Hymnorq 1/16-1/4 Inch 13PC M35 Cobalt Steel Jobber Twist Drill Bits Set, 135 Degree Split Point, Metal Index Case, Extremely Heat Resistant, to Cut Through Stainless Steel and Cast Iron
Brand: Hymnorq
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- COBALT STEEL - Manufactured from M35 cobalt steel, with molybdenum and cobalt added to create a hardened heat-resistant alloy, measuring Rockwell hardness up to 67, for much faster cutting and extra longer life span, with up to twelve times 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.
- 13PC BITS SET - The set includes 13pcs of M35 cobalt steel twist drill bits: 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", well orgnized in a tough metal index case for easy storage.
- 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.
- 90 DAYS WARRANTY - If you are not fully satisfied for any reason, please contact us for 100% refund or replacement.
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#4 Top Choice
LUMN 5/16" Solid Carbide Jobber Drill Bits with Straight Shank and 118° Point Angle, Made from Tungsten Carbide Material,5-Pieces
Brand: LU&MN
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- Size:5/16" Drill Diameter; 2.76" Flute Length; 4.57" Overall Length; 118° Point Angle
- Carbide solid bits have better rigidity and longevity than high speed steel bits.
- Suitable for stainless steel, alloy steel, carbon steel, die steel, tool steel, copper, hard plastic and other materials. Widely used in maintenance department, machine shop and other industries.
- Without any additional coating, it is suitable for a wide range of applications.
- The sharp flutes provides quick, smooth, neat cuts with no burrs.
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#5 Popular Choice
BECOLLO 5/16 Inch Cobalt Drill Bit Set, M35 Jobber Length Twist Drill Bits,Suitable for Drilling in Hard Metal, Stainless Steel, Cast Iron,5 Pieces
Brand: BECOLLO
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- Made from cobalt(5%) High Speed Steel , increases the wear and heat resistance of drill bit, the life span of drill bit is prolonged.
- Fully Grinding Processing makes the surface of drill bit smoother, the friction can be reduced and the cutting speed is faster.
- 135° Split Point Design improves cutting speed while easy self-centering, prevent walking and skating across the workpiece surface
- Perfect suitable for drilling in hard metals such as stainless steel and cast iron, and other softer material are also possible.
- 5pcs of 5/16" cobalt drill bit are packed in a plastic case for easy storage and carrying , manufactured in strict accordance with ANSI B94-11M.
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#6 Top Pick
Bosch Accessories 7-Piece Masonry Drill Bit Set (Natural Stone, Ø 3/4/5/5.5/6/7/8 mm, Accessories for Impact Drills)
Brand: Bosch
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- Tool holder: cylinder shank
- Drill hole diameter: 3/4/5/5.5/6/7/8mm
- Material suitability: masonry/ stone
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#7 Top Pick
Carbide Drill Bit Set for Hardened Steel Stainless Steel Hot Working Steel Metal 1/16 3/16 1/8 1/4 Inch 4 Pcs CNC Tungsten Solid Carbide Twist Drill Bits Set 135° Point Angle
Brand: YFTOOL
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- The Enhanced Tip for Demanding Materials：135° point angle is standard for carbide drills bit machining stainless steel, hot working steel ＜ HRC40 and other high hardness steels. This obtuse geometry strengthens the cutting tip, reduces cutting forces, and minimizes carbide drill bit "slioping or walkino" for improved accuracy and drill life
- Tialsi Coating For Stainless & Hard Steels：TiAlSi coating represents a significant advancement over conventional AlTiN. It features a substantially higher coating hardness of 3,200 HV compared to AlTiN's 2,600 HV, and an elevated oxidation resistance of 1,300°C. This combination, along with its high coefficient of friction, is engineered to withstand the extreme heat and abrasion encountered when drilling stainless steels and high-hardness steel materials
- YFTOOL 4pcs Carbide Drill Bit Set
- Precision For Delicate Work：this solid carbide drill bit set includes 1/16", 1/8", 3/16", and 1/4" drills, engineered for fine and precise drilling. the premium carbide construction ensures exceptional rigidity, guaranteeing tight tolerances within ±0.003mm for demanding applications
- Optimized Chip Control & Heat Reduction：the strong pumping effect created by the 30° helix angle can quickly expel long and tough chips out of the hole. this feature, combined with the short chips formed by the 135° point angle, fundamentally solves the problem of chip blockage. smooth chip evacuation removes a large amount of cutting heat, effectively controlling the workpiece temperature, and significantly reducing the work hardening phenomenon common on materials such as stainless steel and hard steel
- 0.4μm K30 Carbide：the foundation of this carbide drill is a k30 grade carbide with an ultra-fine 0.4-micron grain structure. this delivers two key benefits: extreme wear resistance for a longer tool life and superior strength/rigidity to prevent deflection and breakage, ensuring consistent precision in every cut
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#8 Top Pick
Metric 16Pcs M35 Cobalt Drill Bit Set, 6mm HSS Cobalt Jobber Drill Bits, for Hardened Metals, Stainless Steel, Cast Iron and Wooden Plastics
Brand: MACXCOIP
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- M35 Cobalt Drill Bit: The M35 cobalt drill bit is a durable, sharp and robust drill bit suitable for cutting stainless steel, iron castings, copper, aluminum and other soft metals as well as plastics, wood etc. Note that it is not applicable to quenched bolts
- Single Size: The drill bits include 16pcs 6mm drills. If you have specific drilling size requirements, then the drill bit is very suitable for you
- Quick and Efficient: The cobalt drill bit set can be used effectively on most soft and hard objects, with a 135 degree point tip and twist design for faster cutting, self-centering to prevent walk-off and faster chip and particle removal
- HSS Drill Bit Set: HSS cobalt drill bit set for hardened steel with excellent cutting performance. The inserts are hardened and polished for improved sharpness and precise cutting without wobbling
- Easy to store: The drill bit kit is packaged in a small and sturdy package for easy storage and sorting. If you have any questions, please refer to us and we will be happy to assist you
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#9 Top Pick
Hymnorq 1/8 Inch Fractional Jobber Twist Drill Bit Set of 10pcs, Heat Resistant M35 Cobalt Steel, Fully Ground and Straight Shank, Suitable for Repeated Drilling in Iron and Stainless Steel
Brand: Hymnorq
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- HSS-CO MATERIAL - Manufactured from M35 grade cobalt steel, 5% cobalt added to creates a hardened alloy, for much faster cutting and extra longer life span, with up to twelve times when compared with an average HSS drill bit.
- 135°SPLIT POINT - the 135°quick-cut split point are self-centering and able to penetrate metals quickly with less pressure, prevent bits from "walking and wanding". Easy cutting without need of center punch.
- 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.
- 10PC SET - The set includes 10pcs of 1/8" 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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#10 Top Pick
WOYUOSN 5-PCS high-Strength Eccentric Twist Drill bit，Masonry Drill bits for Concrete Set for Concrete/Glass/Brick/Cement/Tile/Wood/Etc，Industrial Strength Carbide Drill Bits Tip Size 5/32-1/2
Brand: Woyuosn
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- 【High-Strength Eccentric Twist Drill Bits】Crafted with industrial-grade carbide tips, the WOYUOSN high-strength eccentric twist drill bits offer superior hardness, toughness, wear resistance, and impact resistance. These drill bits are finely polished and rust-resistant, ensuring sharp and burr-free performance. Whether you're working with concrete, glass, brick, or wood, these bits provide long-lasting durability and precision, making your drilling tasks smoother and more efficient.
- 【Versatile Drill Bit Set with Hex Shank Design】This masonry drill bit set comes with a range of sizes—5/32", 1/4", 5/16", 3/8", and 1/2"—and features a universal hex shank design for secure grip and compatibility with various drills. This increased versatility makes the WOYUOSN set ideal for both professional contractors and DIY enthusiasts, providing the right tool for any job. The hex shank ensures better holding power and minimizes the risk of slippage during use, offering a reliable drilling experience.
- 【Quick and Efficient Drilling with Low Resistance】Designed for handheld drills, these high-strength eccentric twist drill bits provide precise positioning and reduced friction. This significantly minimizes the chances of slipping or deflection during drilling, especially when working on tough surfaces like concrete, brick, and ceramic pots. These bits are engineered to deliver fast drilling performance while maintaining accuracy, making them a must-have for any serious drilling project. For optimal results, use impact mode sparingly on delicate materials.
- 【Industrial-Strength Cross-Head Tip】Each drill bit features a cross-head tip that enhances cutting power and precision. This professional-grade design ensures that the bit cuts through materials effortlessly, providing cleaner and more accurate holes. When working with harder surfaces such as glass or ceramic, it's recommended to cool the drill with water and control the speed for best performance and longevity of the bit.
- 【Wide Range of Applications for Multiple Materials】The WOYUOSN drill bits are suitable for a wide variety of materials, including glass, ceramics, tile, mirrors, flower pots, wood, porcelain, brick walls, marble, and thin metal sheets. For harder materials like ceramic tiles, marble, glass, and granite, use water to cool the bit and apply gradual pressure while maintaining a tilted angle that transitions to vertical drilling for precision and safety. This set truly offers versatility for both professional and home-use projects.
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