Depressed Center Cut-Off Wheel, Abrasive Material Aluminum Oxide, Connector Size 5/8 In. -11, Connector Type Threaded Hole, Grit 60, Overall Diameter 4 1/2 in, Overall Thickness 0.045 in, Primary Material Application Aluminum, Brass, Copper, Compatible Tool Type Angle Grinder, Series A60S, Wheel Type Type 27, Maximum Operating Speed 13, 300 RPM, Grade General Purpose. This item has been restricted from sale in the following state (s): []