... can be high speed steel,hss, hss co, solid carbide 4.Vertical slot must be cut first, shank and ... , TIALN, ALTIN, TIAIN, etc.sizesstandard and non-standard.materialsolid carbide,hss,hss-coworkpiecwood,plywood,steel,aluminum,plastic,glass,stone etctool ... and impact-resistant application.hardnessGood for machining up to HRC65 degree T sot milling cutter made from HSS or tungsten carbide for aluminium