1.Type:HSS,TCT,Bi-metal,wood,hollow 3.Suitable for:stainless steel ... choose M42, M3 manufacturing, blade adopts toughness good metal connection and become, use of the world's advanced ... : strong toughness, track thin, light, for cutting metal cutting board or stainless steel sheet when super board ... fast, in cutting edge tidy, cold hard metal, should inspect blade cooling fluid temperature charging.