Edge type	front straight shaft Front end guide Front guide Front straight shaft
Material hardness	SKH51 61~64HRC powder high speed steel 64~67HRC SKD11 60~63HRC SKH51 61~64HRC
Surface treatment	TiCN coating surface treatment 3000HV DLC coating surface treatment 3000HV
Substrate (None/WPC)	None WPC

Chamfering punch