Product Description :
The dimension of Drill with Inner-outer Chamfer Tool is from Ø3.0 to Ø25.0. Drilling and chamfering are process on the machine once. The material of drill is tungsten carbide and it could be customized. Replaceable insert could be sharpened.
Video: https://youtu.be/kTbYR3u_lfo
Product Description :
Super Micro Grain 0.3u m/m Co8% ,ith high heat resistance and high wear resistance NB coating.
Especially suitable for Alloy Steel、Die Steel、Heat Treatment HRC45~HRC68