Flip reverse Chrome Vanadium steel ratchet head with smooth action mechanism. Scale graduated in Nm and lb.ft. Calibration tolerance in accordance with BS EN ISO 6789-1:2017. Wrenches are individually tested to standards with ±4% accuracy and each wrench is issued with an individually numbered test certificate. Aluminium knurled handle for comfort and control. Supplied in an EVA tray. Features & Benefits:Range: 20-120Nm(14.8-88.6lb.ft).Flip reverse Chrome Vanadium steel ratchet head with smooth action mechanism.Scale graduated in Nm and lb.ft.Calibration tolerance in accordance with BS EN ISO 6789-1:2017.Wrenches are individually tested to standards with ±4% accuracy and each wrench is issued with an individually numbered test certificate.Aluminium knurled handle for comfort and control. Supplied in an EVA tray.Lifetime guarantee*.Model No. STW903 Specifications: Model No STW903 Brand: Premier Drive: 3/8"Sq Drive Length: 420mm Nett Weight: 0.925kg Range: 20