1.hardened & tempered steel strips power trowel blade 2.CK67/CS70/SAE1065 3.bright 4.professional work on cutting Hardened and ... ,CK55,CK60,CK67,CK75,CK85SAE1055,SAE1060,SAE1065,SAE1074,SAE1085CS55,CS60,CS70,CS80C55,C60,C70,C75,C90I.D. Coil: < 20”, 50.8cmO ...