Wire Wheel Brush, Quick Change System Not Applicable, Bristle Type Crimped Wire, Bristle Material Carbon Steel, Brush Dia. 1 in, Wire Dia. 0.014 in, Bristle Length 7/8 in, Grit Not Applicable, Compatible Tool Type Right-Angle Grinder, Color Not Applicable, Connector Type Shank, Connector Size 1/4 in, Operating Speed - Maximum 4,500 RPM, Shank Length 1/4 in