Cloth Belt, 577F, YF-Weight, 1/2 in W x 12 in L, 60 Grit, Alumina Zirconia, Fabri-lok/Single-flex Abrasive belts come in many different widths and lengths and are used on a variety of belt sanding tools for many different metalworking applications Delivers long-lasting performance and versatility Aluminum Oxide, Aluminum Zirconia, Ceramic