Carbide Nugget Wheel By Mastercarver® High-performance tools! These wheels remove wood faster, leave the surface smoother, and resist clogging better, than others we’ve tried! They feature super-tough nuggets of wear and impact resistant Tungsten Carbide, permanently brazed to steel rims. Unlike other wheels, the open grain design virtually eliminates clogging or buildup. These wheels will fit most all 4.5” or larger angle grinders. Wheel diameter 4.5” (115mm), Hole size: 7/8” (5/8” & 1/2” adaptors included). Use only with guard, 15,000 rpm maximum.