The Sealey STW103 Torque Wrench scales graduated in both Nm and lb.in/lb.ft The Sealey STW103 is a Micrometer Style Torque Wrench made with a Chrome Vanadium steel ratchet head with a smooth action mechanism. Wrenches are individually tested to standards with ±4% accuracy and each wrench is issued with an individually numbered test certificate. Features: Supplied in storage case Scales graduated in both Nm and lb.in/lb.ft Calibration tolerance in accordance with BS EN ISO 6789:2003 Chrome Vanadium steel ratchet head with smooth action mechanism One of a comprehensive range of Premier Hand Tools, suitable for daily professional use Wrenches are individually tested to standards with ±4% accuracy and each wrench is issued with an individually numbered test certificate Specification: Drive: 3/4\"Sq Length: 650mm Model No: STW103 Range: 70-420Nm(52-310lb.ft)