【Material Improvement] - In order to extend the service life of the grinding wheel, we have conducted several experiments and found that replacing the resin with high-quality aluminum oxide makes the grinding wheel harder, more wear-resistant and better performance! 【Disc Size】 CSD disc diameter 125mm, thickness 15mm, aperture 22mm, maximum speed 12500 (rpm), maximum speed 80, grinding grain size - 46# black silicon carbide 【Scope of use】 This negative biscuit is suitable for interface grinding, oil pipe burr removal, ceramic floor polishing and c1/2 surface paint removal and so on. Easy to remove windows clean and remove paint, rust and oxidation. 【High Performance】The paint and rust remover does not damage the surface of the object, the grinding force is uniform, the processing effect is uniform and wear-resistant, the water resistance is strong, the plasticity is strong, the softness is good, it is suitable for various shapes that are removed from grinding, the grinding noise is