Aluminum Oxide, Connector Size 1 1/4 in, Connector Type Unthreaded Hole, Grit 60, Overall Diameter 8 in, Overall Thickness 3/4 in, Compatible Tool Type Cylindrical Grinder, Surface Grinder, Tool and Cutter Grinder, Primary Material Application Aluminum, Cast Iron, Stainless Steel, Steel, Tool Steel, Specification 32A60-HVBE, Wheel Hardness H, Wheel Type Type 1, Maximum Operating Speed 3, 600 RPM, Series 32A, Grade Medium, Bond Type Vitrified, Color Purple, Item Straight Grinding Wheel. This item has been restricted from sale in the following state (s): []