General description Sealey Premier Calibrated Micrometer Torque Wrench features a flip reverse Chrome Vanadium steel ratchet head with a smooth action mechanism. It is designed for precision with a scale graduated in Nm and lb.ft, making it suitable for daily professional use. Each wrench is individually tested to standards with ±4% accuracy and comes with an individually numbered test certificate. Technical specifications Range: 20-120Nm (14.8-88.6 lb.ft) Model No.: STW903 Calibration tolerance: BS EN ISO 6789-1:2017 Other information