Cup Brush Product Type Cup Brush Quick Change System Not Applicable Bristle Type Crimped Wire Bristle Material Bronze Brush Dia 3 in Wire Dia 0.02 in Bristle Length 7/8 in Grit Not Applicable Overall Length 2 9/16 in Compatible Tool Type Right-Angle Grinder Color Silver Primary Material Application Carbon Steel Connector Type Threaded Hole Connector Size 5/8 in-11 Operating Speed - Maximum 14 000 RPM Shank Length Not Applicable