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Top 12 Best Cobalt Drill Bits 2022

Last update on 2022-09-28 / Affiliate links / Images from Amazon Product Advertising API

1. BOSCH CO2152 25/64 In. X 5-1/8 In. Cobalt Drill Bit

  • the rigid thick mesh design increases the stability of the drill in severe applications
  • the surface is hardened to penetrate tough abrasives
  • most suitable for drilling into lightweight metals, high carbon steel,aluminum and alloy steel, cast iron, stainless steel and titanium
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  • can withstand long-term high-temperature applications (up to 1,100 degrees fahrenheit)
  • available processing length, full handle

cobalt drill bits BOSCH CO2152 25/64 In. x 5-1/8 In. Cobalt Drill Bit

2. HSS Cobalt Drill Bits 1/2 In.X 6 In.Jobber Length M35 Twist Drill Steel Metal Iron-5Pcs

  • ✔️ application: most suitable for drilling into lightweight metals, high carbon steel, aluminum and alloy steel, cast iron, stainless steel and titanium
  • ✔️ cobalt material: hss(m35) cobalt steel is a high-quality material with high hardness and red hardness, which can achieve long drilling life and fast drilling performance.
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  • ✔️ split point angle 135 degrees: no center punch is needed-radical 135 degrees.the fast cutting point of the split point is self-centering and can be penetrated quickly under low pressure.will not “walk” or “wander”.
  • ✔️ cobalt drill size: 1/2″ (diameter)” 2″ (diameter)” (groove length)]]]] ]]x 4-1/2″(blade length)x6″(full length)
  • ✔️surface treatment: gold oxide gray surface treatment to enhance the drill bodythe high hardness ensures long drilling life and better drilling performance.

cobalt drill bits HSS Cobalt Drill Bits 1/2 in.x 6 in.Jobber Length M35 Twist Drill Steel Metal Iron-5Pcs

3. M MIMHOOY 5Mm / 0.19″ Cobalt Drill Bit Set (10 Pcs), M35 Cobalt Twist Drill Bits For Stainless Steel And Hard Metal

  • self-centering: through self-centering to increase the cutting speed and prevent walking, remove chips and particles faster. the 135° quick-cut pilot separation point is self-centering and can be penetrated quickly under a small pressure.
  • for hardening materials-m35 cobalt high-speed steel drill bits are more suitable for hardening materials. particularly successful in cutting hard metals such as stainless steel and cast iron. they can also be used for softer materials such as wood and aluminum alloys.
  • cobalt drill bit-made of m35 grade cobalt steel, rockwell hardness up to 67, increased wear resistance and durability, faster and sharper than other drill bits (such as 4241 hss drill bit, titanium drill bit). compared with ordinary high-speed steel drill bits, it can be used up to 12 times.
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  • precision grinding-these drills are fully ground, so their cutting diameters are very accurate and have a longer life compared to non-abrasive alternatives (rolling drills). the smooth surface of the drill bit allows very good hole cleaning.
  • package includes-10 x 5 mm diameter cobalt twist drill bits in a plastic box for easy storage and organization. overall length: 3.4 inches; working length: 2 inches.

cobalt drill bits M MIMHOOY 5mm / 0.19

4. Newzoll 12Pcs/Set Twist Drill Bits, Full Grinding M35 Cobalt HSS Twist Drill Bit Set Metal Drill Bits Drilling Bits Kit For Metal Wood Plastic Steel, Universal Round Shank

  • [twist drill set] 12 different sizes, diameters include: 2.5mm, 3.5mm, 4.5mm, 5.5mm, 6.5mm, 7.5mm, 8.5mm, 9.5mm, 10.5mm, 11.5mm, 12.5mm.1 per size.
  • [compatibility] universal round shank twist drill set (please pay attention to the size), which can be more easily and safely installed in most electric drills or bench drills.
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  • [wide uses] suitable for hardened materials.such as stainless steel, iron, aluminum alloy, hard plastic and wood, can also be used for softer materials
  • [efficient] the bifurcated tip and twisted design increase the cutting speed and help remove chips and debris from the drill bit, reducing friction and heat to speed up the drilling process.
  • [quality] m35 grade cobalt steel, with 5% cobalt content, has the characteristics of high hardness, wear resistance, high temperature resistance, and long service life. it is very suitable for repeated drilling in metal processing.

cobalt drill bits NewZoll 12Pcs/Set Twist Drill Bits, Full Grinding M35 Cobalt HSS Twist Drill Bit Set Metal Drill Bits Drilling Bits Kit for Metal Wood Plastic Steel, Universal Round Shank

5. Metric M42 8% Cobalt Twist Drill Bits Set For Stainless Steel And Hard Metal (1Mm-10Mm/19Pcs)

  • 19pcs 135 degree bifurcated drill bits include: 1mm (length: 3.4cm) 1.5mm 2mm 2.5mm 3mm 3.5mm 4mm 4.5mm 5mm (length: 8.5cm) 5.5mm 6mm (length: 9cm) 6.5mm7mm 7.5mm 8mm(length: 11.5cm) 8.5mm 9mm 9.5mm 10mm(length: 13cm) [diameter 0.5mm increments]
  • high-quality m42 8% cobalt steel, 68-70 hrc (rockwell hardness scale), usually has the best heat resistance, wear resistance, chip resistance and long tool life.
  • 3 steps designed for cutting stainless steel, hard metal, aluminum, plastic.
  • a sharp enough drill blade can cut metal materials into long strips of iron filings, instead of slowly grinding the material into a ball with a blunt drill.
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  • this cobalt drill bit can usually run three to five times the speed.although the price is higher, the cost per hole will be the lowest when using a cobalt drill, because it can produce more holes.

cobalt drill bits Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal (1mm-10mm/19pcs)

6. HSS Cobalt Drill Bits 10Pcs 3/16 In. Jobber Length M35 Twist Drill Steel Metal Iron

  • ✔️ cobalt drill size: 3/16″ (diameter) x 2-5/16″ (groove length) x 3-1/2″ (total length)
  • ✔️ surface treatment: oxidized gold gray surface treatment enhances the hardness of the drill body to ensure longer drilling life and better drilling performance.
  • ✔️ split pointangle 135 degrees: no center punch is needed-radical 135 degrees. the split point fast cutting point is self-centering and can penetrate quickly under low pressure. it will not “walk” or “wander”.
  • make sure it fits
    by entering your model number.
  • ✔️ cobalt material: hss(m35) cobalt steel is a high-quality material with high hardness and red hardness, which can achieve long drilling life and fast drilling performance.
  • ✔️application: most suitable for drilling into light metals, high carbon steel, aluminum andalloy steel, cast iron, stainless steel and titanium
  • ✔️ cobalt drill bit size: 3/16″ (diameter) ‘] then] then] then]]

cobalt drill bits HSS Cobalt Drill Bits 10Pcs 3/16 in. Jobber Length M35 Twist Drill Steel Metal Iron

7. Sipery 10Pcs M35 Cobalt HSS Twist Drill Bits 3Mm With Straight Shank, Drilling For Stainless Steel, Copper, Aluminum Alloy And Softer Materials

    cobalt drill bits Sipery 10Pcs M35 Cobalt HSS Twist Drill Bits 3mm with Straight Shank, Drilling for Stainless Steel, Copper, Aluminum Alloy and Softer Materials

    8. Sipery 5Pcs M35 Cobalt Drill Bits 10Mm HSS Twist Drill Bit Jobber With Straight Round Shank For Drilling Hard Metal, Stainless Steel, Cast Iron

    • multiple applications-cobalt drill bits are very suitable for hard metals such as stainless steel (0.5-8mm thickness) and cast iron.it can be used for wood, aluminum alloy and other softer metals.
    • usage-round shank drill bits are allowed to be used with various tool clamping systems, but it is recommended to use drilling metal on bench drills.
    • 135-degree split point-twist drill has a 135-degree split point, self-centering, preventing walking, making drilling precise and fast.
    • specifications-5 pieces of cobalt drill bits 10 mm 25/64 inches, straight shank, 86 mm/3.38 inches flute length, 132 mm/5.2 inches overall length.
    • material-hss jobber drill bit is made of m35 cobalt high speed steel, fully grinding process, improve wear resistance and drilling life.
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      by entering your model number.

    cobalt drill bits Sipery 5Pcs M35 Cobalt Drill Bits 10mm HSS Twist Drill Bit Jobber with Straight Round Shank for Drilling Hard Metal, Stainless Steel, Cast Iron

    9. Sipery 10Pcs M35 Cobalt HSS Twist Drill Bits 4Mm With Straight Shank, Drilling For Stainless Steel, Copper, Aluminum Alloy And Softer Materials

    • material-hss cobalt high-speed steel has super wear resistance among tough metals. due to the high red hardness of cobalt steel, higher heat resistance is improved.
    • multi-purpose-hss drills successfully cut hard metals such as stainless steel, copper, aluminum alloy, etc., and can also be used for softer materials.
    • durable-compared with typical hss drills, hss cobalt drills have stronger durability.
    • easy to carry-the twist drill is packed in a plastic box for easy storage and easy operation.
    • specifications-10 4mm cobalt drill bits, each kit contains a total of ten drill bits of the same size, blade length: 43 mm/1.7 inches, 118-degree tip, straight shank.
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      by entering your model number.

    cobalt drill bits Sipery 10Pcs M35 Cobalt HSS Twist Drill Bits 4mm with Straight Shank, Drilling for Stainless Steel, Copper, Aluminum Alloy and Softer Materials

    10. Sipery 10Pcs M35 Cobalt Drill Bits 6Mm HSS Twist Drill Bit Jobber With Straight Round Shank For Drilling Hard Metal, Stainless Steel, Cast Iron

    • multiple applications-cobalt drill bits are very suitable for hard metals such as stainless steel (0.5-8mm thickness) and cast iron.it can be used for wood, aluminum alloy and other softer metals.
    • 135-degree segmentation point-the twist drill has a 135-degree segmentation point, which is self-centering to prevent walking, making drilling precise and fast.
    • material-hss jobber drill bit is made of m35 cobalt high speed steel, fully grinding process, improve wear resistance and drilling life.
    • usage-round shank drill bits are allowed to be used with various tool clamping systems, but it is recommended to use drilling metal on bench drills.
    • specifications-10 pieces of cobalt drill bits 6 mm 15/64 inches, straight shank, 65 mm/2.56 inches flute length, 91 mm/3.58 inches overall length.
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      by entering your model number.

    cobalt drill bits Sipery 10Pcs M35 Cobalt Drill Bits 6mm HSS Twist Drill Bit Jobber with Straight Round Shank for Drilling Hard Metal, Stainless Steel, Cast Iron

    11. HSS Cobalt Drill Bits 10Pcs 13/32 In. Jobber Length M35 Twist Drill Steel Metal Iron

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      by entering your model number.
    • very suitable for drilling on hard metals, including drilling on hardened steel
    • cobalt has higher thermal hardness and wear resistance.
    • 13/32″ inch high speed steel cobalt drill bit working length twist drill bit general
    • 135-degree the tip of the crack point immediately starts drilling with a small force and eliminates “walking” on the work surface
    • m35 cobalt high-speed steel, used for drilling steel, stainless steel, hard metals and iron..

    cobalt drill bits HSS Cobalt Drill Bits 10Pcs 13/32 In. Jobber Length M35 Twist Drill Steel Metal Iron

    12. Lichamp 3/8″ HSS Cobalt Drill Bits 5PCS With Three Flute For Hard Metal, Hardened Stainless Steel And Cast Iron

    • 3/8″ cobalt drill bits-round straight shank, including 5 pieces of 3/8 inch diameter hss drill bits, with a well-organized transparent ps shell.
    • multiple applications-ideal for drilling heavy and tough metals, including hard abrasive alloy metals, hardened stainless steel or cast iron.
    • smooth drilling-135-degree split point tip & twisted design improves cutting speed through automatic centering and prevents sliding start or walking.
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    • unique 3x groove design-the lichamp three-groove patented design drill bit removes chips and particles faster, providing you with a more efficient drilling experience.
    • 4-times life material-made of industrial grade m35 high-speed steel, with a cobalt content of 5%, provides abrasion resistance hardness, and can withstand a maximum of 1100 degrees fahrenheit.

    cobalt drill bits Lichamp 3/8