... Bi-metal,wood,hollow 3.Suitable for:stainless steel alloys,low carbon steel,timber and plastic 3.Pack:bulk,set The blade ... choose M42, M3 manufacturing, blade adopts toughness good metal connection and become, ... toughness, track thin, light, for cutting metal cutting board or stainless steel sheet when ... tidy, cold hard metal, should inspect blade cooling fluid temperature charging.