This is a NOR21780 Stripping Wheel. "The Beast" Bear-Tex Rapid Strip Disc TR + Disc black, 800 RPM are constructed with thick, strong, synthetic fibers & extra-coarse silicon carbide abrasive. The open web construction of the disc provides fast cutting action with very little loading. Safer than wire bristle tools. "The Beast" aggressively removes rust & paint from hard to reach areas. 5 per PKG.