10 Best M42 Cobalt Drill Bits for 2025

List of Top Rated M42 Cobalt Drill Bits from thousands of customer reviews & feedback.

Updated On Apr 2025

530 Reviews Studied

By Customer Ratings

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13Pcs HSS Twist Drill Bit Set, M42 Cobalt Steel High Speed Steel Titanium Coated Drill Bit Tool - Straight Shank 1.5mm-6... Read Review

  • ★★ HSS Drill Bit Set For Copper, iron, aluminum, wood, stainless steel, metal drilling
  • ★★ Material: M42 High Speed Steel
  • ★★ Cobalt: 8% High Cobalt. Cobalt steel extends cutting edge life and maintains cutting life after resharpening.
  • ★★ Easy Usage And Store :The set includes 13pcs of M42 cobalt steel twist drill bits: 1.5mm,2mm,2.5mm,3mm,3.2mm,3.5mm,4mm,4.5mm,4.8mm ,5mm,5.5mm,6mm,6.5mm
  • ★★ Package included: 13 pcs HSS Twist Drill Bit Set(Metal storage case). Ideal For DIY, Home, General Building / Engineering, Industrial Tool Using.

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Terrarum 25 Pieces M42 HSS Twist Drill Bit Set 3 Edge Head 8% High Cobalt Drill Bit for Stainless Steel Wood Metal Drill... Read Review

  • Using M42 high speed steel, 8% high cobalt, more durable and shaper, easy to drill solid material, such as 304 stainless steel
  • 3 edge cutter head and 135 degree split point design, make drilling easier, easy to chip, no slipping
  • High heat treated hardness 68-70 HRC
  • Can be used radial drill, bench drill or hand drill chuck for drilling operations

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M42 HSS Twist Drill Bit Set for Metal Contain 8% High Cobalt Copper Iron Aluminum Wood Stainless Steel Drilling Core Dri... Read Review

  • Material: M42 High Speed Steel
  • Cobalt: 8% High Cobalt
  • Blade: Three-edge cutter head design(Less than 3mm is not triple edge)
  • Application: Copper, iron, aluminum, wood, stainless steel, metal drilling
  • Package included: 1 x 13/19/25 pcs HSS Twist Drill Bit Set(Metal storage case)

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FMN-Reamer Tool, 1/4 Inch-1-3/8 inch Step Drill Bit Cobalt M42 Reamer Read Review

  • Type: Chucking Reamer
  • New Spiral Flute Design Cuts Faster and Straighter
  • Two Flute Design Automatically Deburrs While you Drill
  • 3 Flat Sides on the Shank so the Bit will Not "Spin" in the Chuck
  • Package Includes:1x 1/4" to 1-3/8" Cobalt M42 Step Drill Bit Set Spiral Flute

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ZZB-Reamer, 1/4 Inch-1-3/8 inch Step Drill Bit Cobalt M42 Reamer Read Review

  • If you are not sure about the products, please contact us, we will always be happy to help you.
  • Type: Chucking Reamer
  • New Spiral Flute Design Cuts Faster and Straighter.
  • Two Flute Design Automatically Deburrs While you Drill.
  • 3 Flat Sides on the Shank so the Bit will Not "Spin" in the Chuck.

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6
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Cobalt Drill Bit Sets,Roeam 7pcs M42 HSS High Speed Steel Cobalt Spotting Drill Bits Set Round Shank 90 Degree Drilling... Read Review

  • 7pcs spotting drills with 90 degree angle.
  • With high temperature and abrasion resistance.
  • Positioning and chamfering can be finished by one time.
  • The holes made by these drills are not easy to cause edge breakage.
  • High quality high speed steel drills have long service life.

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7
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10pcs M35 HSS Cobalt Drill Bits HSS-CO Drill Bits Set Twist Drill Bits 3mm for Drilling on Stainless Steel Read Review

  • MATERIAL: Made of M35 material, includes 5% cobalt, high hardness, stable performance
  • HIGH QUALITY: with high surface finish, high grinding precision , the blade is sharp and durable in use
  • WIDE APPLICATION: ideal for drilling on stainless steel, cast iron, sheet metal, steel plate, Angle iron; widely used in the drilling of stainless steel plate, automobile spring steel and die steel
  • NOTE: The titanium drill bits set can NOT be used in the impact drill
  • After Sale Guarantee: We care for every customer's feeling. If this product does not meet or exceed your expectations, please do contact us first, we will solve the problem immediately.

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Rennie Tools Box of 10 x 3.5mm HSS Gold Cobalt Jobber Drill Bit for Stainless & Hard Steels. Drills. UK Seller Read Review

  • HSS Cobalt 5% Jobber Drill Bit Drills Bits For stainless Hard Steels

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KKmoon 7pcs M42 HSS High Speed Steel Cobalt Spotting Drill Bits Set Round Shank 90 Degree Drilling Chamfering Tool Read Review

  • 7pcs spotting drills with 90 degree angle.
  • With high temperature and abrasion resistance.
  • Positioning and chamfering can be finished by one time.
  • The holes made by these drills are not easy to cause edge breakage.
  • High quality high speed steel drills have long service life.

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10
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TLF-FF 7pcs M42 HSS High Speed Steel Cobalt Spotting Drill Bits Set Round Shank 90 Degree Drilling Chamfering Tool Read Review

  • 7pcs spotting drills with 90 degree angle.
  • With high temperature and abrasion resistance.
  • Positioning and chamfering can be finished by one time.
  • The holes made by these drills are not easy to cause edge breakage.
  • High quality high speed steel drills have long service life.

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Why Should You Buy the Best M42 Cobalt Drill Bits at Amazon

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Such plenty of yet worthy questions must make you scratch your head and look for their answers badly. We also understand your irritation when you find yourself at the endpoint and unable to answer these because we have also gone through such phase once yet our unyielding will, which comes from the rock-solid trust of our users, enables us to lay consistent efforts to provide a solution eventually blesses us with the golden and the most accurate solutions to these questions.

It’s our kind responsibility to provide you with the most accurate review of the best and latest M42 Cobalt Drill Bits available on the market. We also ensure that you must know what you have to consider before buying M42 Cobalt Drill Bits. Considering such a scenario a challenge, we put in in-depth research leveraging Artificial Intelligence and Machine Learning; we reach a sound conclusion with a list of the most precise products mentioned above. At Envirogadet, we put our own unique and exceptional algorithms to use with the aim to generate lists of Top 10 brands and give them our own Scores, and the products find their rank from 1st to 10th based on these scores.


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