Powerful: The chain speed on the 40.5cm chain saw is 13 m/s. A 50# steel chain ensures optimal cutting performance. Ideal for logging, pruning, firewood preparation, and general DIY maintenance tasks.Safe Braking: Equipped with an electric/mechanical chain-breaking device that stops a moving saw chain in milliseconds, reducing the possibility of injury. The user is protected from flying debris by the front handguard.Automatic Oiler: While the saw is running, the automatic oiler distributes oil on the bar and chain, keeping your chainsaw lubricated and preventing premature wear. The external scale clearly shows the amount of remaining oil in the fuel tank, which is useful for timely oil replenishment.Easy To Use: The SDS chain tightening system requires no tools and allows for quick and easy chain fitting and adjustment. Weighing only 3.5 kg and evenly distributed between the handle and the cutting barProduct Dimension: 41L x 25W x 17H cm ((without guide chain) Assembly Required. The exposed Power Cord is 6m. Need to be equipped with a power cord or carry a portable power supply.