Drill Bit 1mm-11.5mm Carbide Multi Drill Bits Twist/All types of metals Drillin

*Features*

---- nano coating----
Upgraded and thickened nano coating, waterproof and rust proof, capable of directly processing quenched steel above 65 ° C, effectively reducing the number of tool changes. When drilling quenched steel, please add coolant

----- high hard tungsten steel material ------
Micro-particle tungsten steel base material, with higher wear resistance specializing in hardened steel above 65°

----Large capacity spiral groove----
Anti burn drill, anti stick knife, fast chip removal, fast heat dissipation

---- Universal chamfering round shank ----
Easy to use, strong compatibility, no slippage, tight bite and high bearing force, not easy to break

Material: high hardness tungsten steel drill bit

Specification: 1-12mm

*Applicable range*
Copper / iron / aluminum alloy / tool steel / hardened steel / cast iron / high carbon steel