carbide punch and die 1,Materials: HSS M2, SKH9 2,Tolerance: ... ,Working life: 20,0000times 4,8-10 work da specificationsType circular, Square Header , hexagonal , R-shaped…MaterialHSS M-2, SKH-9 ... , China(Mainland)Machine TypePunching Machine Please specify the details of carbide punch and die as following when you inquiry1,The shape ...