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Power Tools for Professionals

CO21B

21 pc. Cobalt M42 Drill Bit Set

Bosch Cobalt M42 Metal Drill Bits are engineered with upgraded M42 alloy, containing 8% cobalt. These hard-core cobalt bits deliver 10X life vs. standard bits, are jobber length and withstand high-heat applications. The thick web-helix design delivers fast material removal and increased stability. Bits that are 1/8 In. and larger feature a split point; bits 3/16 In. and larger feature a three-flat shank, for better bit grip. These cobalt drill bits provide superior performance in stainless steel and can be used to drill cast iron, titanium and other hard or abrasive metals.

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Technical Data

Specification
Case Type Plastic
Description 21 pc. Cobalt M42 Drill Bit Set
Number of Pieces 21.0
Piece Count 21.0
Pieces 21.0
Includes (2) 1/16", (2) 5/64", (1) 3/32", (1) 7/64", (2) 1/8", (1) 9/64", (1) 5/32", (1) 11/64", (2) 3/16", (1) 13/64", (1) 7/32", (1) 15/64", (2) 1/4", (1) 5/16", (1) 3/8", (1) 1/2"

Benefits

  • 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
  • Surface-hardened tip – penetrates tough abrasive materials
  • Split points on bits 1/8 In. and larger – allow for easy starts with no skating, eliminating the need for a center punch
  • Three-flat shank on bits 3/16 In. and larger – deliver better bit grip

Other sizes

Description

14 pc. Cobalt M42 Drill Bit Set

Number of Pieces

14

Includes

(1) 1/16", (1) 5/64", (1) 3/32", (1) 7/64", (2) 1/8", (1) 9/64", (1) 5/32", (1) 3/16", (1) 7/32", (1) 1/4", (1) 5/16", (1) 3/8", (1) 1/2"

Case Type

Plastic

Description

21 pc. Cobalt Drill Bit Set

Number of Pieces

21

Includes

(2) 1/16", (2) 5/64", (1) 3/32", (1) 7/64", (2) 1/8", (1) 9/64", (1) 5/32", (1) 11/64", (2) 3/16", (1) 13/64", (1) 7/32", (1) 15/64", (2) 1/4", (1) 5/16", (1) 3/8", (1) 1/2"

Case Type

Plastic

Description

14 pc. Cobalt Drill Bit Set

Number of Pieces

14

Includes

(1) 1/16", (1) 5/64", (1) 3/32", (1) 7/64", (2) 1/8", (1) 9/64", (1) 5/32", (1) 3/16", (1) 7/32", (1) 1/4", (1) 5/16", (1) 3/8", (1) 1/2"

Case Type

Plastic

Description

29 pc. Metal Index Cobalt Drill Bit Set

Number of Pieces

29

Includes

(1) 1/16”, (1) 5/64”, (1) 3/32”, (1) 7/64”, (1) 1/8”, (1) 9/64”, (1) 5/32”, (1) 11/64”, (1) 3/16”, (1) 13/64”, (1) 7/32”, (1) 15/64”, (1) 1/4”, (1) 17/64”, (1) 9/32”, (1) 19/64”, (1) 5/16”, (1) 21/64”, (1) 11/32”, (1) 23/64”, (1) 3/8”, (1) 25/64”, (1) 13/32”, (1) 27/64”, (1) 7/16”, (1) 29/64”, (1) 15/32”, (1) 31/64”, (1) 1/2”

Case Type

Metal index

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