3M 3M Wetordry 431Q Coated Silicon Carbide PSA Disc - 400 Grit - 8 in Diameter - 21339 60650004884

3M Wetordry coated 431Q PSA disc uses silicon carbide as the abrasive material and has a diameter of 8 in. 3M incorporates this silicon carbide material into the PSA disc forming a grit of 400. All abrasive products that rotate or spin, such as the ones in this category, have a maximum speed at which you can run them. This 3M PSA disc can be run at a maximum speed of 6000 RPMs.