General description Sealey STW901B Torque Wrench Micrometer is a precision tool designed for both daily and professional use. This 1/4" square drive wrench features a calibrated range of 5-25Nm (3.7-18.5 lb.ft) and is constructed with a flip reverse Chrome Vanadium steel ratchet head, ensuring a smooth action mechanism for ease of use. Technical specifications Range: 5-25Nm (3.7-18.5 lb.ft) Calibration tolerance: ±4% accuracy Compliance: BS EN ISO 6789-1:2017 Model No.: STW901B Other information Aluminium knurled handle for comfort and control Supplied in an EVA foam storage tray Lifetime guarantee* Each wrench is issued with an individually numbered test certificate