Depressed Center Grinding Wheel, Abrasive Material Silicon Carbide, Connector Size 5/8 In. -11, Connector Type Threaded Hole, Grit 24, Overall Diameter 7 in, Overall Thickness 0.25 in, Primary Material Application Aluminum, Compatible Tool Type Angle Grinder, Series Masonry, Wheel Type Type 27, Maximum Operating Speed 8, 600 RPM, Grade Extra Coarse