Best Cobalt Drill Bits Reviews

BOSCH CO21B 21 Pc. Cobalt M42 Drill Bit Set

  • Cobalt M42 drill bit – provides upgraded M42 Cobalt jobber-length bits designed for durability, high heat resistance and Hardened surface for stainless steel, cast iron, titanium, light-gauge metal and aluminum.
  • Enhanced M42 alloy material – contains 8% Cobalt alloy that delivers 10x life vs. Standard bits.
  • High-heat resistant bits – withstand high-temperature applications for extended periods of time.
  • Thick web-helix design – provides additional stability in tough applications.Case Type:Plastic.
  • Surface-hardened tip – penetrates tough abrasive materials.
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Topline Cutting Tools No. 7 Drill Bits Cobalt M42 4-Pk

  • Cobalt M42 drill bit – provides upgraded M42 Cobalt jobber-length bits designed for durability, high heat resistance and Hardened surface for stainless steel, cast iron, titanium, light-gauge metal and aluminum.
  • Enhanced M42 alloy material – contains 8% Cobalt alloy that delivers 10x life vs. Standard bits.
  • High-heat resistant bits – withstand high-temperature applications for extended periods of time.
  • Thick web-helix design – provides additional stability in tough applications.Case Type:Plastic.
  • Surface-hardened tip – penetrates tough abrasive materials.
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IRWIN Step Drill Bit Set 3-Piece 10502CB

  • Drill bit is engineered with M-35-grade Cobalt Alloy Steel steel for maximum life when drilling in tough steel.
  • Drill bits feature a radial concave flute.
  • IRWIN drill bits have laser-marked sizes for simple identification.
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BOSCH CO2159B 1/2 In. x 6 In. Cobalt M42 Drill Bit

  • Cobalt M42 drill bit – provides upgraded M42 Cobalt jobber-length bits designed for durability, high heat resistance and Hardened surface for stainless steel, cast iron, titanium, light-gauge metal and aluminum.
  • Enhanced M42 alloy material – contains 8% Cobalt alloy that delivers 10x life vs. Standard bits.
  • High-heat resistant bits – withstand high-temperature applications for extended periods of time.
  • Thick web-helix design – provides additional stability in tough applications.
  • Surface-hardened tip – penetrates tough abrasive materials.
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Gunsmithing At Home For Beginners And Novices

  • 49-PIECE MULTIFUNCTIONAL SET- 13+1pcs nut remover set and 3/8"-1/4" hex adapter, 6pcs spiral screw extractors, 13pcs multi-spline screw extractors, and 16pcs left hand cobalt drill bits..
  • VARIOUS SPECIFICATIONS AND SIZES- The set contains four types of 49 models of parts including metric and imperial sizes such as: 13mm, 9/16", 5/8", 17mm, 11/16", 3/4". You can choose the suitable size according to the size of your fasteners to meet various job requirements..
  • HIGH CARBON STEEL AND HSS MATERIAL-The set is made of High carbon steel and HSS materials. The spiral pattern design can provide sufficient gripping force to facilitate removal. High-quality materials can be used for fasteners of various metals. Please note: Cobalt drill bits should not be used for stainless steel..
  • WIDE RANGE OF APPLICATIONS- Spiral flute extractors are perfect for common fasteners. The mult-spline extractors are useful for higher torque and lower profile tools, while the bolt extractors are for freeing partly-exposed fasteners. The kit also includes a left cobalt drill bit for fasteners, which can be used to help drill t....
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5mm Drill bit M35 Specialist Metal Drill Bits, Twist Drill Bit Set, HSS-CO Twist Drill Bit Stainless 1.0-5.0mm for Drilling Stainless Steel Cast Iron Sheet Metal Steel Plate Angle Iron(5mm)

  • [High Hardness]: This 5mm cobalt drill bits sets are made of M35 material and contain 5% cobalt, which effectively improves its hardness and ensures stable performance.
  • [10 Sizes Available]: There are 10 drill bit sizes for this hss drill bit set, and each pack has 10 identical drill bits, you can choose according to your needs.
  • [High Grinding Precision]: This 5mm twist drill high speed steel bit has a high surface finish, which is very suitable for drilling stainless steel, cast iron, sheet metal, steel plate, angle iron.
  • [35-degree Bifurcated Tip]: This 5mm hss high speed m35 cobalt twist drill uses a 135-degree bifurcated tip design, and starts drilling immediately with a small force.
  • [Wide Application]: This 5mm hss drill bit set is sharp and durable, which can be widely used for drilling stainless steel plates, automobile spring steel and die steel.
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Drill Bits, 2/25 Inch(2mm) Cobalt Drill Bit Set (10pcs), M35 HSS CO Drill Bits for Drilling on Stainless Steel, Cast Iron, Sheet Metal(Brass)

  • Reliable Material: These drill bits are made of M35 material, includes 5% cobalt.
  • They have a longer service life than normal drills, durable in use.
  • Excellent Design: Precious 135-degree split-point design of the drill bit starts drilling immediately with less pressure and prevents “walking” across the work surface.
  • Wide Application: The cobalt drill bit set is ideal for drilling on stainless steel, cast iron, sheet metal, steel plate, angle iron, automobile spring steel and die steel.
  • Fine Workmanship: The blade with high surface finish and grinding precision is quite sharp.
  • 10pcs 2mm cobalt drill bits can maintain cutting life after resharpening.
  • Intimate After-Sales Service: Please feel free to contact us by e-mail if you have any issue about the item.
  • We will try our best to give you a satisfactory reply within 24 hours.
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LudoPam 3/32 Inch Cobalt Drill Bit Set, M35 HSS Twist Jobber Length for Hardened Metal, Stainless Steel, Cast Iron, Pack of 10

  • HIGH QUALITY MATERIAL: 5% Cobalt High Speed Steel M35 provide extended tool life compared to ordinary drill bits.Durable, Higher Heat & Abrasion Resistance..
  • PRECISE 135°SPLIT POINT & TWIST DESIGN: Prevent walking, clear chips and particles faster..
  • PROFESSIONAL & WIDELY USE: M35 Cobalt HSS is more suitable for hardened material. Particularly successful in cutting through hard metals such as stainless steel, cast iron, high temperature alloy, titanium alloy, hard plastics and woods, and also can be used for softer materials..
  • Pay attention to speed, pressure and heat control during drilling..
  • INCLUDE: 10 pieces of 3/32-Inch cobalt drill bits.
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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, Plastic and Wood

  • 【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 satisfactio....
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Drill America - D/ACO1/8P12 1/8" Cobalt Heavy Duty Drill Bit (Pack of 12), D/ACO Series

  • Cobalt M42 drill bit – provides upgraded M42 Cobalt jobber-length bits designed for durability, high heat resistance and Hardened surface for stainless steel, cast iron, titanium, light-gauge metal and aluminum.
  • Enhanced M42 alloy material – contains 8% Cobalt alloy that delivers 10x life vs. Standard bits.
  • High-heat resistant bits – withstand high-temperature applications for extended periods of time.
  • Thick web-helix design – provides additional stability in tough applications.Case Type:Plastic.
  • Surface-hardened tip – penetrates tough abrasive materials.
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