punch die design mould 1,Materials: HSS M2, SKH9, SKD11 2,Tolerance: ... life is 20,0000times 4,8-10 work day punch and die design mould SpecificationsType circular, Square Header , hexagonal , R-shaped… ... Machine TypePunching Machine Please specify the details of punch die design mould as follows when you inquiry1,The shape of punches ... best to provide your own drawings.6,We can design as your inquiry