Robust construction gives accurate results, to +/-4%, even in arduous working conditions. Every wrench supplied with a calibration certificate to satisfy requirements of ISO9000:2000. The large break angle improves accuracy by reducing the possibility of over torquing. Cam control of the mechanism gives a controlled break which will not throw the operator off balance.
1" and 3/4" Norbar Torque wrench for truck and tractor comes with both 3/4" and 1" adapters