... -1085,AISI52100,AISI304,316,420,440 specification:thorough hardened,super-fine surface size:1-25.4mm material:AISI1005-1085,AISI52100 ... ,AISI304,316,420,440specification:thorough hardened,super-fine surfacesize:1-25.4mmthe specifications of our products is ... 10-1000dia:1.0-50.8mmHRC:58-65We also manufacture ball retainers with many specifications.if any of the above ...