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 a calibration tolerance of ±4% accuracy and comes with an individually numbered test certificate. The wrench is supplied in an EVA tray for easy storage and transport. Technical specifications Model No.: STW902 Range: 5-25Nm (3.7-18.5 lb.ft) Calibration tolerance: ±4% Other information