Features: Made from zirconia alumina, designed for high speed sanding and heavy duty removal, delivering fast and long lasting cut. Zirconia alumina abrasive provides extended service life and more cutting Power than aluminum oxide, saving replacement costs and sanding time. Suitable for grinding, stock removal, beveling, weld blending, deburring, rust removal, cleaning and finishing. Applied on rust, paint, ferrous, stainless steel, non-ferrous metals, wood and plastics.