10 Best Cobalt Drill Bits

After analyzing products, scanning reviews, spending more than 36 hours of research and speaking with our test users, we think the DEWALT DWA1240 Pilot Point Industrial Cobalt Drill Bit Set (14 is the one of the Best Cobalt Drill Bits on the market.

# Image Name Brand Price
1 DEWALT DWA1240 Pilot Point Industrial Cobalt Drill Bit Set (14 DEWALT DWA1240 Pilot Point Industrial Cobalt Drill Bit Set (14 Piece)
(Editor’s Choice)
DEWALT $$$$$ Check price
2 IRWIN Industrial Tools 316015 Cobalt Drill Bit Set IRWIN Industrial Tools 316015 Cobalt Drill Bit Set, 15-Piece Irwin Tools $$$$$ Check price
3 21 Pc Cobalt M42 Drill Bit Set 1/16" to 1/2" 21 Pc Cobalt M42 Drill Bit Set 1/16" to 1/2" by 32nds DRILL HOG USA Drill Hog $$$$$ Check price
4 29 Pc Cobalt Drill Bit Set M42 HSS 29pc USA 29 Pc Cobalt Drill Bit Set M42 HSS 29pc USA Drills Lifetime Warranty Made in USA Drill Hog $$$$$ Check price
5 CO-Z 5pcs Hss Cobalt Multiple Hole 50 Sizes Step Drill CO-Z 5pcs Hss Cobalt Multiple Hole 50 Sizes Step Drill Bit Set with Aluminum Case CO-Z $$$$$ Check price
6 Migiwata Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Migiwata Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bits with Straight Shank Set of 13pcs to Cut Through Hard Metals Such as Stainless Steel and Cast Iron
(Best value for the money)
Migiwata $$$$$ Check price
7 Drill America DWD29J-CO-PC Qualtech 29 Piece Cobalt Steel Jobber Length Drill America DWD29J-CO-PC Qualtech 29 Piece Cobalt Steel Jobber Length Drill Bit Set in Plastic Case, Gold Oxide Finish, Round Shank, Spiral Flute, 135 Degrees Split Point, 1/16" to 1/2" Size Drill America $$$$$ Check price
8 Migiwata Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Migiwata Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bits with Straight Shank Set of 50pcs in 5 Sizes(1, 1.5, 2, 2.5, 3mm) to Cut Through Stainless Steel Cast Iron and Hard Metals Migiwata $$$$$ Check price
9 Craftsman 9-64085 Professional Cobalt Drill Bit Set Craftsman 9-64085 Professional Cobalt Drill Bit Set, 21 Piece Craftsman $$$$$ Check price
10 Bosch 21 Piece Cobalt Metal Drill Bit Set CO21 Bosch 21 Piece Cobalt Metal Drill Bit Set CO21 Bosch $$$$$ Check price

DEWALT DWA1240 Pilot Point Industrial Cobalt Drill Bit Set (14 – Best Overall Cobalt Drill Bit

DEWALT DWA1240 Pilot Point Industrial Cobalt Drill Bit Set (14
  • Designed for maximum speed and life
  • Pilot point and split tip design
  • No bit walking - more user control
  • Intended to be used on hard metals

IRWIN Industrial Tools 316015 Cobalt Drill Bit Set

IRWIN Industrial Tools 316015 Cobalt Drill Bit Set
  • Cobalt steel extends cutting edge life and maintains cutting life after resharpening
  • Extra hard drill for greater wear
  • 135-Degree split point tip starts on contact, cuts with less force
  • Reduced shank above 3/8-Inch allows the use of larger drill bits in a 3/8-Inch chuck
  • Similar cobalt sets available for almost every drilling application

21 Pc Cobalt M42 Drill Bit Set 1/16" to 1/2"

21 Pc Cobalt M42 Drill Bit Set 1/16" to 1/2"
  • Solid Cobalt M42 Steel
  • 135 Degree Split Point Prevents "walking"
  • Tri Flat Shank - 3 Flat Sides on Shank Prevents "Spin" in the Chuck
  • 1/16 to 1/2" by 1/32nds Includes Steel Case with Pop Up Tiers
  • Lifetime Warranty

29 Pc Cobalt Drill Bit Set M42 HSS 29pc USA

29 Pc Cobalt Drill Bit Set M42 HSS 29pc USA
  • Premium Solid Cobalt M42 Super High Speed Steel
  • 1/16" to 1/2" in 1/64th Increments (Does not Skip any Sizes)
  • High Heat Treated Hardness 68-70 HRC (Rockwell Hardness Scale)
  • 135 Degree Split Point Prevents "Walking"
  • Tri-Flat Shank Prevents "Spinning" in Chuck

CO-Z 5pcs Hss Cobalt Multiple Hole 50 Sizes Step Drill

CO-Z 5pcs Hss Cobalt Multiple Hole 50 Sizes Step Drill
  • Cobalt high speed steel along with the titanium coating ensures extreme durability, will stay new and shiny for years to come.
  • Different sized shanks ensure compatibility with 1/4, 3/8 and 1/2 in. chuck sizes.
  • Non-walking drill tip provides fast and smooth drills on steel sheets, aluminum sheets, wood board, plastic board etc. (the board must be smaller in thickness than the height of step drill bits).
  • Please mark the spot that you are to drill for easier drilling and improved drill bits life.
  • All the bits come in a well-organized case for easy transport and storage.

Migiwata Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill – Best Budget Cobalt Drill Bit

Migiwata Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill
  • COBALT STEEL - Manufactured from M35 cobalt steel, with molybdenum and cobalt added to creates a hardened alloy, measuring Rockwell hardness up to 67, extremely heat resistant; for much faster cutting and extra longer life span, with up to twelve times when compared with an average HSS drill bit.
  • NO CENTER PUNCH NEEDED - The 135° Quick-Cut points are self-centering and penetrate quickly with less pressure. Will not "walk" or "wander". Straight shank allows for firmly holding and accurate centering, fit for standard drill chucks and regular round collet chucks. Must be used and operated at proper RPMs for maximum efficiency
  • 13PC METRIC BITS - The set includes 13pcs of M35 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
  • FOR METALWORKING - Particularly successful in cutting through hard metals such as stainless steel and cast iron, although they can be used for softer materials, too.
  • SATISFACTION GUARANTEED - Here at Migiwata, we do care about your satisfaction. We try our best to ensure each product is in perfect condition before you get it, but if something is not up to your satisfaction, please contact us for a full refund or replacement.

Drill America DWD29J-CO-PC Qualtech 29 Piece Cobalt Steel Jobber Length

Drill America DWD29J-CO-PC Qualtech 29 Piece Cobalt Steel Jobber Length
  • Set of 29 jobber length drill bits includes inch sizes 1/16" to 1/2" in 1/64" increments
  • Cobalt steel provides extended tool life compared to high-speed steel drill bits when drilling hard materials
  • Gold oxide finish lubricates the drill bit and provides wear resistance
  • Self-centering 135-degree split point penetrates hard material without a pilot hole and produces small chips to reduce clogging
  • Meets ANSI specifications

Migiwata Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill

Migiwata Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill
  • M35 Cobalt Steel - Manufactured from M35 cobalt steel, with molybdenum and cobalt added to creates a hardened alloy, measuring Rockwell hardness up to 67, for much faster cutting and extra longer life span, with up to twelve times when compared with an average HSS drill bit.
  • No Center Punch Needed - the 135° quick-cut points are self-centering and penetrate quickly with less pressure. Will not "walk" or "wander"
  • For Stainless Steel - Particularly successful in cutting through hard metals such as stainless steel and cast iron, although they can be used for softer materials, too. Not for hardened steel / high carbon steel. Try to adjust the RPM when it fails to penetrate.
  • 50pcs Set - The set includes 50pcs of M35 cobalt steel twist drill bits: 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 10pcs of each size
  • Satisfaction Guaranteed - Here at Migiwata we only care about your satisfaction. We try our best to ensure each product is in perfect condition before you get it, but if something is not up to your satisfaction, please contact us for a full refund or replacement.

Craftsman 9-64085 Professional Cobalt Drill Bit Set

Craftsman 9-64085 Professional Cobalt Drill Bit Set
  • 1/16-inch to 3/8-inch drill bit range
  • Includes plastic carrying case
  • Designed for heavy duty use in all metals, including hard metals
  • Split point that drills on contact and eliminates "walking"
  • Ideal for drill presses and stationary machines

Bosch 21 Piece Cobalt Metal Drill Bit Set CO21

Bosch 21 Piece Cobalt Metal Drill Bit Set CO21
  • TOUGH: The Bosch CO21 Drill Bit Set is manufactured from cobalt for drilling in hard and abrasive materials such as stainless, cast iron, and high-density metal. Also useful for general drilling in light-gauge metal, wood, and plastic.
  • ACCURACY: Featuring a no-skate split-point tip for clean, precise holes and accurate starts.
  • RELIABLE: The three-flat shank design promotes better grip and guards against slipping on bits 3/16 in. and larger
  • PERFORMANCE: Designed for very high drilling temperatures for superior performance in stainless steel. Bosch Cobalt Metal Drill Bits are solid, reliable, and provide 4X longer life than standard high-speed drill bits.
  • VERSATILITY: Includes laser-etched marking to provide clearly marked bit diameter. Included bit sizes: 1/16 in., 5/64 in., 3/32 in., 7/64 in., 1/8 in., 9/64 in., 5/32 in.,11/64 in., 3/16 in., 13/64 in., 7/32 in., 15/64 in., 1/4 in., 5/16 in., 3/8 in., 1/2 in.

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