Sealey Calibrated Micrometer Torque Wrenches - Sealey STW103, Chrome Vanadium steel ratchet head with smooth action mechanism. Calibration tolerance in accordance with BS EN ISO 6789-1:2017. Scales graduated in both Nm and lb.in/lb.ft. Wrenches are individually tested to standards with ±4% accuracy and each wrench is issued with an individually numbered test certificate. Supplied in storage case. Sealey STW103 Torque Wrench Micrometer Style 3/4"sq Drive 70-420nm/52-310lb.ft
