Material improvement - In order to extend the service life of the grinding wheel, we conducted many experiments and found that replacing the resin with high-quality aluminum oxide makes the grinding wheel harder, more wear-resistant and more efficient! Disc diameter: 125mm - thickness: 15mm - opening: 22mm [Scope of application]: This disc cleaning is suitable for interface grinding, oil pipe deburring, ceramic floor polishing, etc. C1/2ar surface paint stripping, etc. Easy to remove glass, cleans and removes paint, rust and oxidation. [High performance]: Removing paint and rust does not damage the surface of the object, the grinding force is uniform, the processing effect is uniform and wear-resistant, strong water resistance, strong plasticity and good smoothness. Suitable for various shapes output by the grinder, and the grinding force is weak. The dust removal performance is weak. Note: The data is all manual measurement, please allow an error of 1-3cm difference in light and