Cut-Off & Grinding Wheel, Abrasive Material Zirconia Alumina, Connector Size 5/8 In.-11, Connector Type Threaded Hole, Grit 24, Overall Diameter 7 in, Overall Thickness 0.125 in, Primary Material Application Cast Iron, Stainless Steel, Steel, Compatible Tool Type Angle Grinder, Series The Ultimate Pipeline, Wheel Type Type 27, Maximum Operating Speed 8,500 RPM, Grade Extra Coarse