Cup Brush, Product Type Cup Brush, Quick Change System Not Applicable, Bristle Type Crimped Wire, Bristle Material Brass, Brush Dia. 2 3/4 in, Wire Dia. 0.014 in, Bristle Length 7/8 in, Grit Not Applicable, Overall Length Not Applicable, Compatible Tool Type Right-Angle Grinder, Color Not Applicable, Connector Type Threaded Hole, Connector Size 5/8 In.-11, Operating Speed - Maximum 12,500 RPM, Shank Length Not Applicable