... dia:3mm,6mm dental burrs,tungsten carbide sand wheel(1)used for foundry grinding, grinding disc, oil nozzle and other irregular parts of ... alumina)WA(white fused alumina), A(alumina),GC(green silico carbide) More product pcs:manufacturer specialized in Roll taps, spiral pointed ... tools, such as end mills, drills, saws.. dental burrs,tungsten carbide sand wheel