... 9001:2008 coatingTIN, TIALN, ALTIN, TIAIN, etc.sizesstandard and non-standard.materialsolid carbide,hss,hss-coworkpiecwood,plywood,steel,aluminum ... stone etctool lifeLonger tool life, super high wear resistant and impact-resistant application.hardnessGood for machining up to HRC65 ... 50M64X6.00M68X6.00 ISO sprial hss machine tap and hand tap, tapping machine hand drill, hss hand taps with straight flute