The Oregon 21LPX57E Super 20 is a high-performance chainsaw chain engineered for professional woodcutters. Featuring a .325-inch pitch, .058-inch (1.5 mm) gauge, and 57 drive links, this chain is designed for demanding cutting applications. Its full chisel cutters provide aggressive cutting performance, while the LubriTec™ oiling system helps keep the chain and guide bar lubricated for reduced friction and extended lifespan. The blued cutters offer superior corrosion resistance. This chain is suitable for a variety of professional chainsaws requiring these specifications.