Maximum torque: 250 FT-LBS. Simply plug into cigarette lighter socket. LCD digital display. Multiple levels of torque control available. Two double-ended sockets 11/16",3/4",13/16",7/8"(17,19,21,23mm). Cord length: 12 feet (3.6m) long enough to get around your car. Loosen and tighten lug nuts in seconds. For DIY only. Not fitted for professional shop use.