Depressed Center Wheels, Abrasive Material Diamond, Connector Size 5/8 In. -11, Connector Type Threaded Hole, Grit 50, Compatible Tool Type Angle Grinder, Overall Diameter 4 1/2 in, Overall Thickness 1/8 in, Series DiamondX, Wheel Type Type 29, Maximum Operating Speed 13, 600 RPM, Grade Supreme. This item has been restricted from sale in the following state (s): []