... types and sizes 3)Shank dia:3mm,6mm dental burrs,tungsten carbide sand wheel(1)used for foundry grinding, grinding disc, ... alumina), A(alumina),GC(green silico carbide) More product pcs:manufacturer specialized in Roll taps, spiral pointed taps, spiral fluted ... taps and other cutting tools, such as end mills, drills, saws.. dental burrs,tungsten carbide ...