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 it is reversible with its lever but only for right hand action when torque checking the wrench is equipped with an angular gauge for after tightening it is graduated in both nm and ftlb and has a degree scale for after tightening of cylinder heads the ratchet head has a satin finish and for comfort and excellent grip