Depressed Center Grinding Wheel, Abrasive Material Ceramic, Connector Size 5/8 In. -11, Connector Type Threaded Hole, Grit 36, Overall Diameter 4 1/2 in, Overall Thickness 0.25 in, Primary Material Application Steel, Tool Steel, Compatible Tool Type Angle Grinder, Series Green Corps, 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): []