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 4 in Segment Design Double Row Maximum Operating Speed 15 000 RPM Series Vari-Grind G65 Abrasive Depth 3/16 in