Metal Drill Bits

Cobalt M42 Drill Bits

For rotary drills/drivers

Long Lifetime

  • For rotary drills/drivers
  • Cylindrical shank compatible with three-jaw drill chucks.
  • Cobalt M42 drill bit – provides upgraded M42 cobalt jobber-length bits designed for durability, high heat resistance and hardened surface for stainless steel, cast iron, titanium, light-gauge metal and aluminum
  • Enhanced M42 alloy material – contains 8% cobalt alloy that delivers 10X life vs. standard bits
  • High-heat resistant bits – withstand high-temperature applications for extended periods of time
  • Thick web-helix design – provides additional stability in tough applications

Materials

Stainless Steel
Metal Pipes & Profiles
Steel Sheets
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Diameter (D) Inch 15 options

Choose a pack size 1


Cobalt M42 Drill Bits
from 
For rotary drills/drivers

Fits tools of most brands

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Cylindrical shank compatible with three-jaw drill chucks.

LONG LIFETIME WHEN DRILLING STAINLESS STEEL

The Cobalt Drill Bit provides long-lasting performance when drilling stainless steel. This extended lifetime results from a cobalt alloy content of 5% and fully ground HSS (high-speed steel), which provides excellent surface quality, wear resistance and heat protection. Equipped with two cutters and two flutes, chips are removed quickly to make the bit last even longer. This drill bit works with alloyed and non-alloyed steel, stainless steel, cast iron, cast steel and acid- and heat-resistant steels

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Product Options

Available product options: 15

Part number Diameter (D) Inch Total length (L2) Inch Working length (L1) Inch Pack quantity
CO2131B 1/16 - - 1
CO2159B 1/2 6 4 1
CO2133B 3/32 - 1 1/4 1
CO2134B 7/64 - 1 1/2 1
CO2135B 1/8 - 1 5/8 1
CO2136B 9/64 - 1 3/4 1
CO2137B 5/32 - 2 1
CO2138B 11/64 - 2 1/8 1
CO2139B 3/16 - 2 3/8 1
CO2141B 7/32 - 2 1
CO2143B 1/4 4 2 3/4 1
CO2147B 5/16 4/5 3 3/16 1
CO2151B 3/8 5 3 5/8 1
CO2155B 7/16 - 3 1
CO2132B 5/64 2 - 1

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