M35 high-speed steel is the main feature containing Co general cutting tool steel, quenching hardness is 1200-1240 c. Furthermore, M2 was used in the cutter, broach, end milling cutter. For manufacturing strong cutting with wear-resistant, resistant to impact a variety of tools, advanced punching die, screw die, the toughness and complex shape tools, reamer, milling cutter, bunt, punch, etc