Cup Brush Product Type Cup Brush Quick Change System Not Applicable Bristle Type Standard Twist Knot Wire Bristle Material Carbon Steel Brush Dia 6 in Wire Dia 0.035 in Bristle Length 1 3/8 in Grit Not Applicable Overall Length 5 13/16 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 6 600 RPM Shank Length Not Applicable