Introducing the 4 x 36Inch Aluminum Oxide Sanding Belt by POWERTEC. This premium pack of 3 was designed to provide you with a cost effective set of long lasting and high performance sanding belts. Made with open coat Aluminum Oxide (A/O) grain, they act as a multi-purpose tool best used for wood sanding, shaping, stripping and giving a smooth finish to 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: POWERTEC, Craftsman, Rockwell, Jet, Rikon, Wen, Ryobi, Grizzly, Shop Fox, Delta, Skil, Porter Cable, Harbor Freight, and more! Specifications: Abrasive Belt Size: 4x36Inch Grit Size: 100 Material: Premium Open Coat Aluminum Oxide (A/O) Grain Backing: Strong " X Weight Cloth Backing Joint: Strong Butt Joint Construction Package: 3 pieces Grit Selection Guide: 40 60 Grit: Heavy Sanding and Stripping 80 180 Grit: Removing Tiny Imperfections 240 400 Grit: Delivering a Super Fine Smooth Finish