The Bosch 83322 Silicon Carbide Grinding Stone is a high‑quality mounted abrasive point designed for sharpening, deburring, and general‑purpose grinding on hard materials. Made from green silicon carbide, it excels on stone, glass, ceramic, porcelain, gemstones, and non‑ferrous metals. Its 1/8-inch diameter cylindrical shape and 1/8-inch shank allow for precision work at speeds up to 35,000 RPM, making it ideal for detailed grinding and etching applications.