Txheem: DIN338
Super txheej, txo cov confection ntawm kev sib txhuam, thiab txhim kho cov cuab yeej lub neej ntau
Khoom siv: HSS + Tungsten Carbide taub
Lub kaum sab xis: 118-135 °
Hardness:> HRC60
Daim ntawv thov: rau kev txiav cov ntaub ntawv nyuaj, suav nrog steel, cam khwb cia hlau, tawv hlau