... 2.straight shank, taper shsnk 3.hss co, hss, solid carbide can be avalible. Our factory specialize in manufacturing all types of cutting ... . coatingTIN, TIALN, ALTIN, TIAIN, etc.sizesstandard and non-standard.materialsolid carbide,hss,hss-coworkpiecwood,plywood,steel,aluminum,plastic,glass,stone etctool lifeLonger ...