This Teng Tools torque wrench is manufactured according to DIN 3122 standards. With a ratchet head, the torque wrench can be used for both tightening and final checking of the torque. The wrench is equipped with an angular gauge for after tightening. It is graduated in both Nm and ft.lb, and has a degree scale for after tightening of cylinder heads. The ratchet head has a satin finish and for comfort and excellent grip, the wrench has a rubber handle. Accuracy: ± 4%.Drive: 1/2in Square Drive. Range 70 to 350 Nm / 50 to 250 ft.lb