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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.

Showing 1–26 of 39 results

  • Cobalt Stubby Screw Machine DRILL BITS
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    Cobalt High Production Stubby Screw Machine Drill Bit

    $0.85$16.56
  • Cobalt Jobber Drill Bit - Premium
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    PREDATOR Cobalt Jobber Drill Bit 1/16″ up to 1/2″

    $1.48$12.98
  • Cobalt Aircraft Extension
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    AIRCRAFT EXTENSION DRILL BITS- COBALT 6″ LENGTH FRACTIONAL

    $4.57$18.65
  • Cobalt Aircraft Extension
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    AIRCRAFT EXTENSION DRILL BITS- COBALT 12″ LENGTH FRACTIONAL

    $5.97$49.59
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    ULTRA LUBE Metal cutting oil

    $7.53
  • Cobalt Jobber Drill Bit - Premium
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    #31 – #60 PREMIUM COBALT NUMBER DRILL BITS (PACK OF 12)

    $14.30$19.14
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    Drill Gauge Wire Sizes #1 -#60

    $14.80
  • Cobalt Jobber Drill Bit - Premium
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    #1 – #30 Premium Cobalt Number Drill Bits

    $19.14$41.03
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    Cobalt Double Ended Drill Bits

    $21.29$39.90
  • Cobalt Silver and Deming Drill Bit
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    Premium Cobalt Silver and Deming Drill Bits – 1/2″ Shank

    $22.05$136.30
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    Black & Decker
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    BLACK & DECKER ORIGINAL GERMAN MADE DRILL BIT SET SMOKING HOT DEAL (CLOSEOUT)

    $29.88
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    SCREW EXTRACTOR & COBALT LEFT HAND DRILL SET
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    Screw Extractor & Cobalt Left Hand Drill Set

    $31.12
  • Cobalt Aircraft Extension
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    AIRCRAFT EXTENSION DRILL BITS- COBALT 6″ LENGTH Number Sizes

    $39.12$89.04
  • Cobalt Step Drill Bit for hardened steel
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    Premium Cobalt Step Drill Bit

    $42.12$79.98
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    Cobalt Jobber Drill Bit Set -13pc
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    PREDATOR 13PC M42 COBALT JOBBER DRILL BIT SET

    $49.98
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    Quick Release Hex Shank Carbide Tipped
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    Hex shank Quick Release Carbide Tipped – Germany

    $49.98
  • Cobalt Aircraft Extension
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    AIRCRAFT EXTENSION DRILL BITS- COBALT 12″ LENGTH Number Sizes

    $72.60$168.48
  • foam ear plugs
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    NEW SOUND-SANCTUARY EAR SOUND REDUCTION (200PR)

    $99.98
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    Cobalt Jobber Drill Bit Set 21pc
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    PREDATOR 21pc Cobalt Jobber Drill Bit Set

    $119.50
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    Cobalt Metric Drill Bit Set for drilling work hardened materials
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    METRIC 1mm – 13mm Cobalt Jobber drill bit set

    $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

    $179.80
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    Super Sonic T-80 Jobber Drill Bit Set - USA Made
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    T-80 Super Sonic Drill Bit Set

    $189.78
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    T-100 Heavy Duty Super Sonic Drill Bit Set
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    T-100 SUPER SONIC DRILL BIT SET Hi-Molybdenum

    $219.32
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    Shop Display – 29pc Predator M42 COBALT Drill Set – USA

    $229.89

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