... use on angle grinders, aggressively remove material by grinding on the perip Grinding Wheel/Abrasive disc, grinding, Dia. 4.5 In., Thickness 1/4 ... 616, For Use With Angle Grinder, Fast Metal grindting.For grinding metal,sainless steel,stone,etc.For Use With Angle Grinder ... MaterialAluminum OxideGrit24Bond TypeResinMax. RPM16,616ApplicationGeneral Purpose MetalCountry of OriginChina grit grinding wheel