ATD Tools 101M 1/2" Drive Torque Wrench Molded storage case included range: 20-150 feet. -pounds., 33.9-210.1 N.m Complies with ANSI/AMSE, ISO and Federal Specs It has a graduations: 1 feet.-pounds., 1.4 N.m Square drive: 1/2 inch and has a length: 20.8 inch