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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  • 25/64" Cobalt RED HELIX

    MSRP: $13.86

    $7.99

    Milwaukee
    25/64" Cobalt RED HELIX

    SKU 48-89-2322
    Free Shipping when you buy $49+ Milwaukee Hand Tools & Accessories
  • Milwaukee 48-89-2303 3/32" Thunderbolt Cobalt Drill Bits, 2 Pack

    MSRP: $2.80

    $2.25

    Milwaukee
    3/32" Cobalt RED HELIX

    SKU 48-89-2303
    Free Shipping when you buy $49+ Milwaukee Hand Tools & Accessories
  • Milwaukee 48-89-2307 5/32" Thunderbolt Cobalt Drill Bits

    MSRP: $3.72

    $2.49

    Milwaukee
    5/32" Cobalt RED HELIX

    SKU 48-89-2307
    Free Shipping when you buy $49+ Milwaukee Hand Tools & Accessories
  • Milwaukee 5/64" Cobalt RED HELIX (48-89-2302)

    MSRP: $2.58

    $1.99

    Milwaukee
    5/64" Cobalt RED HELIX

    SKU 48-89-2302
    Free Shipping when you buy $49+ Milwaukee Hand Tools & Accessories
  • 13/64" Cobalt RED HELIX

    MSRP: $4.56

    $3.25

    Milwaukee
    13/64" Cobalt RED HELIX

    SKU 48-89-2310
    Free Shipping when you buy $49+ Milwaukee Hand Tools & Accessories
  • 11/64" Cobalt RED HELIX

    MSRP: $4.14

    $2.99

    Milwaukee
    11/64" Cobalt RED HELIX

    SKU 48-89-2308
    Free Shipping when you buy $49+ Milwaukee Hand Tools & Accessories
  • sale
    Bosch 9/32" x 4-1/4" Cobalt Drill Bit (CO2145)

    MSRP: $4.83

    Regular Price: $4.60

    Special Price $0.97

    Bosch
    9/32" x 4-1/4" Cobalt Drill Bit

    SKU CO2145
  • Bosch CO4143 1/4" Cobalt SP Jobber Drill Bit (Bulk)

    MSRP: $3.59

    $2.99

    Bosch
    1/4" Cobalt SP Jobber Drill Bit (Bulk)

    SKU CO4143
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