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M42 Cobalt Drill Bits

Our premium cobalt drill bits can cut through various work-hardened and abrasive materials, including stainless steel, and metals such as cast iron, bronze, and titanium have no chance against our premium-quality cobalt drill bits for sale. Our cobalt drill bits meet ANSI standards, are available in sizes up to 1/2″, and feature a heavy-duty 135-degree split point design for quick drilling. All cobalt drill bits 3/16″ and up have ground 3-flat shanks to prevent slippage. DBW cobalt drill bits for hardened steel are a great choice for cutting through weld seams. We carry a wide variety of lengths, consisting of a jobber, stub-screw machine, and aircraft extension for hard-to-reach places. If you often need cobalt drill bits for hardened steel, try out one of our sets. We can also produce custom sizes and sets necessary for your application. Give us a call at (800) 350-8665 for more information about our impressive selection.

  • Cobalt Jobber Drill Bit - Premium
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    PREDATOR Cobalt Jobber Drill Bit 1/16″ up to 1/2″

    Price range: $1.48 through $14.79 This product has multiple variants. The options may be chosen on the product page
  • Cobalt Stubby Screw Machine DRILL BITS
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    Predator Cobalt Stubby Screw Machine Drill Bit

    Price range: $2.34 through $14.78 This product has multiple variants. The options may be chosen on the product page
  • Cobalt Aircraft Extension
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    AIRCRAFT EXTENSION DRILL BITS- COBALT 6″ LENGTH FRACTIONAL

    Price range: $4.57 through $18.65 This product has multiple variants. The options may be chosen on the product page
  • Cobalt Aircraft Extension
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    AIRCRAFT EXTENSION DRILL BITS- COBALT 12″ LENGTH FRACTIONAL

    Price range: $5.97 through $49.59 This product has multiple variants. The options may be chosen on the product page
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    ULTRA LUBE Metal cutting oil

    Original price was: $12.89.Current price is: $7.53.
  • Cobalt Jobber Drill Bit - Premium
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    #31 – #60 PREMIUM COBALT NUMBER DRILL BITS (PACK OF 12)

    Price range: $14.30 through $19.14 This product has multiple variants. The options may be chosen on the product page
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    Drill Gauge Wire Sizes #1 -#60

    Original price was: $29.88.Current price is: $14.80.
  • Cobalt Jobber Drill Bit - Premium
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    #1 – #30 Premium Cobalt Number Drill Bits

    Price range: $19.08 through $41.03 This product has multiple variants. The options may be chosen on the product page
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    Cobalt Double Ended Drill Bits

    Price range: $21.29 through $59.88 This product has multiple variants. The options may be chosen on the product page
  • Cobalt Silver and Deming Drill Bit
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    Premium Cobalt Silver and Deming Drill Bits – 1/2″ Shank

    Price range: $22.05 through $136.30 This product has multiple variants. The options may be chosen on the product page
  • Cobalt M42 Super Sonic Drill bits
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    Super Sonic Cobalt M42 Jobber Drill Bits – NAS 907J Spec – Sold Per Pack

    Price range: $27.96 through $162.00 This product has multiple variants. The options may be chosen on the product page
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    SCREW EXTRACTOR & COBALT LEFT HAND DRILL SET
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    Screw Extractor & Cobalt Left Hand Drill Set

    Original price was: $48.80.Current price is: $31.12.
  • Cobalt Aircraft Extension
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    AIRCRAFT EXTENSION DRILL BITS- COBALT 6″ LENGTH Number Sizes

    Price range: $39.12 through $89.04 This product has multiple variants. The options may be chosen on the product page
  • Cobalt Step Drill Bit for hardened steel
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    Cobalt Predator Step Drill Bit

    Price range: $42.12 through $79.98 This product has multiple variants. The options may be chosen on the product page
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    Cobalt Jobber Drill Bit Set -13pc
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    Predator Cobalt 13-Piece Jobber Drill Bit Set

    Original price was: $69.80.Current price is: $49.98.
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    Quick Release Hex Shank Carbide Tipped
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    Hex shank Quick Release Carbide Tipped – Germany

    Original price was: $78.89.Current price is: $49.98.
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    S&D Extension for Large Drill Bits with 1/2″ Shank

    Original price was: $89.68.Current price is: $69.98.
  • Cobalt Aircraft Extension
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    AIRCRAFT EXTENSION DRILL BITS- COBALT 12″ LENGTH Number Sizes

    Price range: $72.60 through $168.48 This product has multiple variants. The options may be chosen on the product page
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    NEW SOUND-SANCTUARY EAR SOUND REDUCTION (200PR)

    $99.98 This product has multiple variants. The options may be chosen on the product page
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    Cobalt Jobber Drill Bit Set 21pc
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    Predator Cobalt 21-Piece Jobber Drill Bit Set

    Original price was: $199.88.Current price is: $129.54.
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    Cobalt Strike Spotweld Drill Set - 4-piece high-performance cobalt steel drills in a rugged steel case, designed for cutting spot welds on auto body panels and aerospace materials
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    Cobalt Strike Spot Weld Drill Bit Set

    Original price was: $189.98.Current price is: $139.11.
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    Cobalt Metric Drill Bit Set for drilling work hardened materials
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    Predator Cobalt Metric 1mm-13mm Jobber Drill Bit Set

    Original price was: $210.30.Current price is: $156.98.
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    8PC BLACK OXIDE SD MONSTER DRILL SET
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    8pc HSS Black Oxide S&D Drill Bit Set

    Original price was: $249.98.Current price is: $179.80.
  • Super Sonic T-80 Jobber Drill Bit Set - USA Made
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    T-80 Super Sonic Drill Bit Set

    Original price was: $229.78.Current price is: $194.78. This product has multiple variants. The options may be chosen on the product page
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    Cobalt Predator Drill Bit Set Sizes A through Z
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    Predator Cobalt A-Z Letter Jobber Drill Bit Set

    Original price was: $329.88.Current price is: $213.01.
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    Cobalt #1 thru #60 Jobber Drill Bit Set
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    Predator Cobalt #1-#60 Number Jobber Drill Bit Set

    Original price was: $289.89.Current price is: $218.54.

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