Wire Wheel Brush, Bristle Type Crimped Wire, Product Type Wire Wheel Brush, Bristle Material Nylon, Brush Dia. 4 in, Grit 600, Face Width 7/16 in, Bristle Diameter 0.012 in, Bristle Length 1 7/16 in, Primary Material Application Aluminum, Brass, Copper, Plastic, Connector Type Unthreaded Hole, Connector Size 5/8 in, Operating Speed – Maximum 20,000 RPM, Shank Length Not Applicable