Recessed Grinding Wheel Abrasive Material Ceramic Connector Size 5 in Connector Type Unthreaded Hole Grit 46 Overall Diameter 12 in Overall Thickness 1 1/2 in Wheel Hardness I Specification 5SG46-IVS Wheel Type Type 5 Compatible Tool Type Cylindrical Grinder Surface Grinder Primary Material Applicationn Cast Iron Nickel Alloy Stainless Steel Steel Titanium Maximum Operating Speed 2 070 RPM Recess Depth 1/2 in Recess Diameter 7 1/2 in Bond Type Vitrified Color Blue