... )Shank dia:3mm,6mm dental burrs,tungsten carbide sand wheel(1)used for foundry grinding, grinding disc, oil ... workpieces.(2)The major characteristic: hardwearing, strong power for grinding. (3)Application: metals grinding, mend etc ... fused alumina), A(alumina),GC(green silico carbide) More product pcs:manufacturer specialized in Roll taps ... mills, drills, saws.. dental burrs,tungsten carbide sand wheel