Do you often have to tighten nuts? Or not often, but still have to do it, it is much faster and more convenient to turn them with the help of a wrench. This device is easy to take with you, because it is powered by its own battery, which is enough to charge up to 4 hours of work. The torque of this wrench is 1030 ft-lbs, and that is a pretty serious claim for such a machine. The kit includes the wrench itself, the charger and the battery.