With easy to read display in Nm and ft.lb. To set torque; simply pull out the push lock system to unlock handle; turn handle to desired setting; and lock. When the set torque value is reached you will feel and hear a ''click''. - 20-100Nm (3/8" drive) - Pushbutton ''quick release'': Yes - 45 teeth - Left & right ratcheting system - Outer diameter: 40.5mm - Head height: 37mm - Length: 405mm - Weight: 1010 grams - Packed in a sturdy blow molded case Note: This torque wrench is accurate to ±3% of the setting and is manufactured and tested in accordance with DIN 3122 & ISO 6789. This is a precision product and should be used as such. As with all torque wrenches; it is advised to set torque to its lowest setting for maximum product life.