Cod. 18942
Kit inserts X21 for threading, KR5420 and PR5440

Kit inserts for threading and grinding.
Code 300: SET X21.075-300 ISO ER coated PVD KR5420 class ISO P20, M15, K15, S15.
Code 400: SET X21.075-300 ISO IR coated PVD PR5440 class ISO P40, M30.
Form A: crest shaving is executed before thread cutting.
Form B: crest shaving is executed after thread cutting.