CO21B

21 pc. Cobalt M42 Drill Bit Set

CO21B

Product Description
Technical Data
Other sizes
Reviews

Product Description

Description

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.

Technical Data

Specifications

Attributes
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

Select your item below for more details

Item	Description	Number of Pieces	Includes	Case Type
CO14	14 pc. Cobalt Drill Bit Set	14	(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"	Plastic
CO14B	14 pc. Cobalt M42 Drill Bit Set	14	(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"	Plastic
CO21	21 pc. Cobalt Drill Bit Set	21	(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"	Plastic
CO4029	29 pc. Metal Index Cobalt Drill Bit Set	29	(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”	Metal index