3M™ Cloth Belt 340D is an open-coat, premium-grade aluminum oxide cloth belt. Fast-cutting aluminum oxide abrasive grains are resin-bonded to a durable cotton cloth backing to provide continuous cut and long-life. The open coat and load-resistant coating make this belt particularly favorable for sanding soft woods. Additionally, the washable backing is suitable for high production environments where the belt may need washing at intervals to remove soft wood resin or pitch buildup. This is a belt that provides durability for aggressive stock removal, resists loading, and is suitable for a variety of applications on wood and metal. Recommended for wide belt sanding, edge sanding, or portable belt sanding. Sanding Belt, 3 In Wx21 In L, AO, 60GR, PK50