Introducing the 3 in. x 18 in. Aluminum Oxide Sanding Belt Set in 4 Popularly Used Grits by POWERTEC This premium assortment-pack of 20 was designed to provide you with a cost effective set of Long-lasting and high performance sanding belts in a range of grits. From 40-grit to 120-grits, this comprehensive selection of popular grit sizes specifically allows you to sand through all the extra-coarse and coarse stages of your projects. Made with open coat Aluminum Oxide (A/O) grain, they act as a multi-purpose tool best used for potent grinding, material removal, shaping, de-burring, stripping, resurfacing and wood sanding, in many of your woodworking applications. Additionally, these belts work exceptionally well with lite and non-ferrous metals, blending welds, fiberglass, plastic, and rubber. Each belt flaunts an X-weight clothed backing, and possesses a strong resin on resin bond with well crafted seams for Long-lasting results. Whether you're a professional or DIY kind of guy, these Heavy-duty sanding belts are compatible with many of your go-to sanders, including: Craftsman, Makita, Skil, Wen, Ridgid, Porter-Cable, Black+Decker, Bosch, Triton, Hitachi, Metabo, and more.