Silicon Carbide Connector Size 1 1/4 in Connector Type Unthreaded Hole Grit 80 Overall Diameter 12 in Overall Thickness 2 in Compatible Tool Type Bench Grinder Pedestal Grinder Primary Material Applicationn Aluminum Brass Bronze Cast Iron Copper Masonry Natural Stone Stainless Steel Titanium Specification S/C FINE 80 Wheel Hardness Not Rated Wheel Type Type 1 Maximum Operating Speed 2 070 RPM Reducer Bushing Size 1 in Series 39C Grade Fine Bond Type Vitrified Color Green