DIN1897 Straight shank twist drill
Material: HSS, carbon tool steel,alloy tool steel,(T10A,T12A 9SiCr,CrWMn) Surface finish: TiN,TiC, AlTiN.Micro hardness: HV10000,Long working life, high wear resistance and impact-resistant performance.
Material: HSS, carbon tool steel,alloy tool steel,(T10A,T12A 9SiCr,CrWMn) Surface finish: TiN,TiC, AlTiN.Micro hardness: HV10000,Long working life, high wear resistance and impact-resistant performance.