Advanced Technology: LED flashing / Buzzer notification when under torque or overload. Easy to read LCD display with measurements (kg-cm, N-m, in-lb. ft-lb) Multiple Functions: 10 - 41 mm (0.4 - 1.6 inch) Adjustable Spanner Head with Backrush-less Mechanism to lock on nuts & bults. 7.4 - 147.5 ft-lbs Torque Measurement Ramge in Peak or Trace Modes with 0.1 ft-lb Resolution The Adjustable Spanner head allows user to fasten/unfasten nuts and bolts of any sizes while provide uncompromising accuracy. Perfect to fasten/unfasten delicate pipes and cables. This compact digital torque wrench can operate in tough conditions. Perfect tool for control and apply measured torque in industrial, HVAC, automotive and aerospace applications. Summit digital torque wrenches are constructed from high quality stainless steel and industrial plastics. This electric torque wrench set comes with a protective case that shields it against wear & tear when not in use to deliver long lasting performance. Included components: digital torque wrench, socket set, user manual, certification of calibration