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Cobalt Drill Bits

Cobalt drill bits offer greater durability than black oxide bits, and are one of the best choices for wood, plastic, stainless steel, light metal drilling applications. Our selection of cobalt drill bits can withstand high speed drilling, and are built for years of durable service. With more than seventy cobalt drill bits to choose from, manufactured by brands like Milwaukee, DEWALT, and Bosch, you're sure to find the right cobalt drill bit at Toolbarn.
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  • Bosch CO4147 5/16" Cobalt SP Jobber Drill Bit (Bulk)

    MSRP: $4.98

    $3.75

    Bosch
    5/16" Cobalt SP Jobber Drill Bit (Bulk)

    SKU CO4147
    Save $30 when you spend $149 or more on select Bosch products!
  • Bosch CO4136 9/64" Cobalt SP Jobber Drill Bit (Bulk)

    MSRP: $1.64

    $1.49

    Bosch
    9/64" Cobalt SP Jobber Drill Bit (Bulk)

    SKU CO4136
    Save $30 when you spend $149 or more on select Bosch products!
  • Milwaukee 48-89-2317 5/16" Cobalt Drill Bits

    MSRP: $8.48

    $5.75

    Milwaukee
    5/16" Cobalt RED HELIX

    SKU 48-89-2317
    Free Shiping when you buy $49+ Milwaukee Hand Tools & Accessories
  • Milwaukee 1/2" Cobalt RED HELIX (48-89-2329)

    MSRP: $20.70

    $12.75

    Milwaukee
    1/2" Cobalt RED HELIX

    SKU 48-89-2329
    Free Shiping when you buy $49+ Milwaukee Hand Tools & Accessories
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