Silicon Carbide Connector Size 1 in Connector Type Unthreaded Hole Grit 60 Overall Diameter 7 in Overall Thickness 1 in Compatible Tool Type Bench Grinder Pedestal Grinder Primary Material Applicationn Aluminum Brass Bronze Cast Iron Copper Masonry Natural Stone Stainless Steel Titanium Wheel Hardness Not Rated Wheel Type Type 1 Maximum Operating Speed 3 600 RPM Reducer Bushing Size 1/2 in 5/8 in 3/4 in 7/8 in Series 39C Grade Medium Bond Type Vitrified Color Green