3/8" Low Profile Chain 50 Drive Links .043 Gauge This chain is a Fast cutter with an easy to sharpen. Single drag for better cutting performance. NOT for beginners, but made for the Professional Use that is designed for fast, smooth cutting performance at high speeds. Specifically engineered for maximum stay sharp even under the most severe cutting conditions or hardwoods, This chain is easily maintained with standard 5/32" round chain saw files. WARNING: ALL CUTTING CHAINS CAN KICKBACK, which may result in severe personal injury to the saw operator or bystanders. Operate your saw safely. Read all warnings in your chainsaw operator's manual.