Depressed Center -Off Wheel, Abrasive Material Aluminum Oxide, Connector Size 5/8 In.-11, Connector Type Threaded Hole, Grit 60, Overall Diameter 5 in, Overall Thickness 0.045 in, Primary Material Applicationn Aluminum, Brass, Copper, Compatible Tool Type Angle Grinder, Series A60S, Wheel Type Type 27, Maximum Operating Speed 12,200 RPM, Grade General Purpose