Feature:1. Ergonomic design: special guide plate, tungsten steel does not need to be lubricated, so the electric shearing machine reduces the resistance during operation and reduces the wear and tear of the machine.2. The chainsaw chain and guide wheel are made of Mn steel, with high hardness, fast slicing speed and better performance.3. The same saw can be configured with different bar lengths. Check your parameters to make sure this chain works with your device.4. Heat-treated and quenched rivets make the connection between the links stronger.5. All chain knives have good wear resistance. Specifications:Material: Mn Steel4 Inch Chain: 1/4, 28 Sections6 Inch Chain: 1/4, 37 SectionsColor: BlackType: Chainsaw ChainsawPacking List:1 Set * Steel Chainsaw Chain