The ACDelco ARM601-3 3/8" Digital Torque Wrench provides ideal controls with pre-set Peak or Trace modes for mechanics tighten a object to a specific torque value. The torque rang of ARM601-3 is 2-37 ft-lbs or 3-50 Nm. Overall tool length is 12 and 3/8 inch. Resolution is 1 kg-cm, 0.1 N-m, 1 in-lb, 0.1 ft-lb. 4 x AAA Alkiline Battery required, not included.