Aluminum Oxide, Connector Size 1 1/4 in, Connector Type Unthreaded Hole, Grit 46, Overall Diameter 7 in, Overall Thickness 1/2 in, Compatible Tool Type Cylindrical Grinder, Surface Grinder, Tool and Cutter Grinder, Primary Material Application Nickel Alloy, Steel, Tool Steel, Specification 25A46-HVBE, Wheel Hardness H, Wheel Type Type 1, Maximum Operating Speed 3,600 RPM, Series 25A, Grade Coarse, Bond Type Vitrified, Color Pink, Item Straight Grinding Wheel, Package Quantity 5