Wire Wheel Brush Quick Change System Not Applicable Bristle Type Standard Twist Knot Wire Bristle Material Carbon Steel Brush Dia 1 in Wire Dia 0.02 in Bristle Length 1 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