1. Suitable for a 115mm angle grinder, the grinding disc can remove rust, dirt, paint, welding slag, scale, oxidation, and other surface contaminants more quickly and efficiently. 2. Uniform grinding force, wear-resistant, high water resistance, high plasticity, good smoothness, suitable for various shapes. 3. It will not damage the surface of the object being ground, no rust, no chipping, less grinding noise, and less dust. 4. Removes general coatings and polishes surfaces, and can be used on stainless steel, low-carbon steel, aluminum, plastic, cement, wood, and stone surfaces. 5. The package contains 5 grinding discs, outer diameter: 115mm; hole diameter: 22mm; thickness: 15mm