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Professional Level Cobalt 8% HSS M42 Amber Finish Twist Drill Bit

Chinese manufacturer cobalt M42 HSS Co8 drill

Chinese manufacturer cobalt M42 HSS Co8 drill
Feature highlights：

M42 8% cobalt fully ground twist drill bits

the drill bits are specialized in drilling hole in stainless steel

Named surface treatment is available for the drill bits
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specification

Chinese manufacturer cobalt M42 HSS Co8 drill

Industrial grade cobalt high speed steel give the drill bits much more durability

Cobalt give the drill bits much higher hot hardness and abrasion resistence.

Usage:  For Stainless steel, high temperature alloy, titanium alloy, high strength steel and carbon fiber composite materials, etc.