Cup Brush Product Type Cup Brush Quick Change System Not Applicable Bristle Type Standard Twist Knot Wire Bristle Material Stainless Steel Brush Dia 2 3/4 in Wire Dia 0.02 in Bristle Length 1 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 14 000 RPM Shank Length Not Applicable Series Gemini