Segment Cup Grinding Wheel, Abrasive Material Diamond, Connector Size 5/8 in; 7/8 in, Connector Type Unthreaded Hole, Compatible Tool Type Angle Grinder, Primary Material Applicationn Concrete, Number of Segments 12, Overall Diameter 7 in, Segment Design Double Row, Maximum Operating Speed 8,600 RPM, Series Vari-Grind G65, Abrasive Depth 3/16 in