... can be mores taper and straight, it used primarily for milling t slot in machines table.3.materials can be ... , ALTIN, TIAIN, etc.sizesstandard and non-standard.materialsolid carbide,hss,hss-coworkpiecwood,plywood,steel,aluminum,plastic,glass,stone etctool lifeLonger tool ... super high wear resistant and impact-resistant application.hardnessGood for machining up to HRC65 degree T sot milling cutter made ...