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(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"

Cobalt M42 drill bit Å“ 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 Å“ contains 8% cobalt alloy that delivers 10X life vs. standard bits

High-heat resistant bits Å“ withstand high-temperature applications for extended periods of time

Thick web-helix design Å“ provides additional stability in tough applications

Surface-hardened tip Å“ penetrates tough abrasive materials

Split points on bits 1/8 In. and larger Å“ allow for easy starts with no skating, eliminating the need for a center punch

Three-flat shank on bits 3/16 In. and larger Å“ deliver better bit grip

Additional Information

Weight0.5400  kg
Width113  mm
Height43  mm
Length197  mm
Material StatusActive 
Date of Valid Distribution Status20220104 
Country of OriginChina 
Case TypePlastic 
Number of Pieces21 


Bosch CO21B 21Pc Cobalt M42 Drill Bit Set

Bosch CO21B 21Pc Cobalt M42 Drill Bit Set

GTIN : 000346594607


SKU : kpt010-CO21B


Regular price $130.19
Regular price Sale price $130.19
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