Ceramic Connector Size 5 in Connector Type Unthreaded Hole Grit 46 Overall Diameter 12 in Overall Thickness 1 in Compatible Tool Type Cylindrical Grinder Surface Grinder Tool and Cutter Grinder Primary Material Applicationn Cast Iron Nickel Alloy Stainless Steel Steel Titanium Specification 5SG46-IVS Wheel Hardness I Wheel Type Type 1 Maximum Operating Speed 2 070 RPM Series 5SG Grade Coarse Bond Type Vitrified Color Blue Item Straight Grinding Wheel