WORX WG320 Cordless 6 in. 20-volt MAX Lithium JawSaw is the safe, hassle-free way to cut and trim branches and limbs. Conveniently lightweight and portable, it's designed to operate directly on the ground or pavement. Its steel teeth hold branches securely in place while cutting. It also allows for one-handed operation, which means no more bending over or squatting to cut limbs on the ground. Features include Auto-tension feature guarantees optimum tension of chain, Automatic chain lubrication, Oil level indicator and Lock pin provided to keep blade extended for service mode