Depressed Center Grinding Wheel, Abrasive Material Zirconia Alumina, Connector Size 5/8 In. -11, Connector Type Threaded Hole, Grit 24, Overall Diameter 4 1/2 in, Overall Thickness 0.25 in, Primary Material Application Cast Iron, Stainless Steel, Steel, Compatible Tool Type Angle Grinder, Series Z-Tech Z24R, Wheel Type Type 27, Maximum Operating Speed 13, 300 RPM, Grade Extra Coarse. This item has been restricted from sale in the following state (s): []