Dremel 84922 Silicon Carbide Grinding Stones Accessory Set, 3 for Grinding, Sharpening and Engraving in Stone, Glass Non ferrous Metals (4,8 mm)

Features: Small, cone shaped silicon carbide grinding stone. 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 Great for grinding and etching Specially designed for working with conic and flat surfaces What can you do with it: For sharpening, deburring and general purpose grinding. Typical uses include removal of stilt marks and excess glaze, sharp edges on tiles and engraving on glass. These grinding stones are tougher than aluminum oxide points, these are made especially for use on hard materials such as glass and ceramics. How to use: Use the side of the accessory for the best finish at an angle. Materials to use on: To grind and etch stone, glass, ceramics, porcelain and non-ferrous metals. Recommended speeds (RPM): Ceramic: 20-30.000 Glass: 20-30.000 Stone: 20.000 - 25.000 Shell: 20.000 - 25.000.