Crimped Wire Wheel Brush Bristle Material Carbon Steel Brush Dia 3 in Grit Not Applicable Face Width 7/16 in Bristle Diameter 0.008 in Bristle Length 1/2 in Compatible Tool Type Drill Press Connector Type Round Shank Connector Size 1/2 in Operating Speed - Maximum 20 000 RPM Shank Length 1/4 in Color Not Applicable