Premium nylon back with silicon carbide grain. 8 Features of Black Diamond Polishing Disc - Cleaning oxides and dirt before and after metal brazing and brazing. - Clean various surface paints, protective varnishes and insulating paints, e.g.B. the body. - Cleaning and rust protection of the metal surface. - Clean molder, spray shaft. - Remove stains from the concrete column wall. - Residual fuel and rubber seals on rocket mechanisms. - Remove the ring from the cylinder. - Cleaning and maintenance of equipment to remove fine dirt and hard lumps on the surface. Notes: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Dimensions are measured by hand, so sizes shown may vary slightly. Item name: Sanding Disc Color: Purple Material: Black Adamas. Diameter: 125 mm - opening: 22 mm Suitable for: angle grinder 125 cm. Safety note: Max. rotation speed: 9800 rpm. Scope of delivery: 2 x cleaning discs