Dremel Genuine OEM Replacement Grinding Stones, 4 Pack, 84922-2PK

Includes (4) Grinding Stones. New, Bulk Packed. Ideal for sharpening, deburring and general purpose grinding on harder materials. Designed to work well on stone, glass, ceramic, porcelain, gemstones and non-ferrous metals. Specially designed for working with conic and flat surfaces. Great for grinding and etching. Compatible with the Following: Dremel: 4000, 400, 398, 395, 300, 285, 275, 200, 100, 8200, 800, 780,300,8220