This Teng 350 Nm 1/2" drive torque wrench can be used for both tightening & final checking of torque. This wrench is reversible with a lever but only for right hand action for torque checking. It's equipped with an angular gauge for after tightening. It is graduated in Nm & ft/lbs, has a lockable setting & an accuracy of +/-4%. Manufactured according to DIN3122 standards & comes with a satin finish.