3" Pro Buffing Ball - Hex Shank - Turn Power Drill into High-Speed Polisher Convert your power drill, impact driver or die grinder into high-speed cleaning & buffing machine Unique 1/4 hex shank fits drill chucks, die grinder collets, quick-change bit holders & receivers 3-diameter ball of high-density synthetic - GREAT buffing material for reduced swirls Thousands of fibers polish surface with each rotation; small size gets into hard to reach areas Time & effort saver for cars, motorcycles, boats - get concours-like finish without breaking a sweat