... ,Longer Tool Life3:ISO.OEMpunch press toolingPunch press toolingMaterial Cr12Mov = D2 = SKD11 W6Mo5Cr4v2 = M2 = SKH51Heat treatment HRC 60°- 62° HRC 61 ... :For Punch Press Tooling:Cr12Mov=SKD11,W6M05Cr4v2=M2=SKH51,LD=D2=DC53 Material:3:for shearing blades:1:9CrSi,2:6CrW2Si ...