Punching Material | Precision Bar | Bar Mold | Tool Parts – 1 Pcs High-speed Steel Diy 6

Name: High-speed steel white steel knife (black)

Features:

Using quenching heat treatment, high-speed steel material, high hardness and not easy to collapse.
After the black skin nitriding treatment, the hardness is as high as 60°C, and the impact resistance.
It can process cast iron, forgings, steel parts, etc.