Felt Buffing & Polishing Burr Set - 1/4 Shank - Rotary" Turn your drill or die-grinder into high-speed power polishing and buffing machine Premium-quality felt formed and permanently mounted on high-speed steel shafts Indispensable for cleaning, shining and finishing fine-detail surfaces Four unique shapes for more versatility: flat cylinder, bull-nose, ball and knob Fit all power drills, die-grinders with 1/4" collet; use with or without polish or rouge