One of a comprehensive range of Premier Hand Tools, suitable for daily professional use. • 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. • Lifetime guarantee*.