Introducing the 4 inch x 24 inch (100 mm x 610 mm) 180 Grit Aluminum Oxide Sanding Belt by POWERTEC. This premium pack 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. 【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.