Carbon tool steel has the feather of low cost of production, easy sourcing of raw material,easy cold and hot processing, obtain very high hardness after heat treatment; and good wear resistance under not high temperature surrounding.
So it is widely used for the production of small size, simple shape, blade, saw blade, and textile accessories.
Full hard, semi hard, soft anneal, Spheroidizing annealed, Quenching and Tempering,
E0 Unprocessed edge
E1 Slit edge
E2 Slit edge, surface without burr
E3 Slit edge deburred
E4 90° squared edge, rounded corners
E5 Round edge
E6 90° squared edge, sharp
E7 90° squared edge, slightly beveled corners
E8 Convex rounded edge
E9 Cutting edge