M35 cobalt high speed steel: wear resistance and sharp edge
Titanium Coated surface: has higher hardness, better wear resistance and longer service life than ordinary drills.
1/4 " hex shank: can quickly replace the drill bit, eliminates the frustration of the handle rotation on the chuck, and makes it easier to quickly lock to the chuck.
Fully Ground Spiral Groove Design: can quickly remove debris, reduce friction and heat, and drill faster.