Home Products Power Tool Accessories Precision Rotary Tools Cup Bristle Brushes Bristle Brush Cup 1/2″ Shank 1/8″ Safe Rpm 15,000 Bristle Brush Cup 1/2″ Shank 1/8″ Safe Rpm 15,000 (78602) Bristle cup brush designed for polishing or light cleaning of precious metals Size 1/2-Inch 1/8-Inch shank Find a Retailer