Depressed Center Grinding Wheel, Abrasive Material Ceramic, Connector Size 5/8 In.-11, Connector Type Threaded Hole, Grit 24, Overall Diameter 7 in, Overall Thickness 0.25 in, Primary Material Applicationn Stainless Steel, Steel, Compatible Tool Type Angle Grinder, Series Saitech Ultimate Performance, Wheel Type Type 27, Maximum Operating Speed 8,500 RPM, Grade Extra Coarse