Dremel's 1/8" Silicone Carbide Grinding Stone Accessory Bit.
A high-quality industrial abrasive made for extended usage. Ideal for sharpening, deburring, cleaning and general purpose grinding on harder materials--including stone, glass, ceramic, porcelain, gemstones, and nonferrous metals. Specially designed for working with conic surfaces. Use for all types of deburring, blending and finishing operations.
One Grinding Stone Bit
Stone Diameter: 1/8" (3.2mm) Shank Diameter: 1/8" (3.2mm)