stamping die 1,Materials: HSS M2, SKH9, ASP 2,Tolerance: less than 0.005mm 3,Working life: 20,0000times 4,8-10 work days stamping die specificationsType circular, Square Header , hexagonal , R-shaped…MaterialHSS M-2, SKH-9, SKD11,ASP23,ASP30...Surface TreatmentTIN TICN TIALN CRN ..Length Tolarance+/-0.01Diameter Tolerance+/-0.002HardnessHRC64°-69°Packing Quantity10Weight2.00Place Of OrignDongguan ...