Cup Brush Product Type Cup Brush Quick Change System Not Applicable Bristle Type Crimped Wire Bristle Material Abrasive Nylon Brush Dia 6 in Wire Dia 0.04 in Bristle Length 1 5/16 in Overall Length Not Applicable Compatible Tool Type Right-Angle Grinder Connector Type Threaded Hole Connector Size 5/8 In.-11 Operating Speed - Maximum 6 500 RPM Shank Length Not Applicable