Sealey Torque Wrench Micrometer Style 1/2"Sq Drive 60 340Nm STW704Manufactured from hardened and tempered Chrome Vanadium steel with a polished satin finish. Smooth action ratchet head with flip reverse action to allow torquing in both directions. Easy to use torque adjustment, locks when required setting is selected. Calibration tolerance in accordance with BS EN ISO 6789 1: 2017. Scales graduated in both Nm and lb. ft. Wrenches are individually tested to standards with 4% accuracy and each wrench is issued with an