Segment Cup Grinding Wheel, Abrasive Material Diamond, Connector Size 5/8 In.-11, Connector Type Threaded Hole, Compatible Tool Type Angle Grinder, Primary Material Applicationn Concrete, Number of Segments 10, Overall Diameter 4 in, Segment Design Turbo, Maximum Operating Speed 15,000 RPM, Series Vari-Grind G50, Abrasive Depth 3/16 in