Dremel 84922 Silicon Carbide Grinding Stone
Tougher than aluminum oxide bits, Dremel''s Silicone Carbide Grinding stones are designed for use on hard materials such as glass, ceramics, stone, porcelain and nonferrous metals. Ideal for sharpening, deburring and for general purpose grinding and for projects like removing stilt marks, clearing excess glaze on ceramics, and glass engraving.