... unit Material: HSS, SKD61, SKH51 ... Hardness:HRC 45~ 60+ Standard:DIN, HASCO,DME ... Dear Sir/Madam,We would like to ... etcHardness:After surface treatment HRC 60+ Standard:DIN, HASCO,DANLY, DME , MISUMI, PUNCH, Rabourdin and non -standard ,Ect.Rang of size :pin ... high temperature...We have rich experience in manufacturing high precision with the tolerance 0.005mmand high hardness tool accessories ...