Flip reverse Chrome Vanadium steel ratchet head with a 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 foam storage tray. - • PREMIER BLACK – One of a comprehensive range of hand tools, suitable for daily and professional use. • RANGE – 60-330Nm(44.3-243.5lb.ft). • FLIP REVERSE DRIVE - Chrome Vanadium steel ratchet head with smooth action mechanism. • CALIBRATED IN ACCORDANCE WITH BS EN ISO 6789:2017 - 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. • STORAGE - Supplied in an EVA foam storage tray. • GUARANTEE – Premier Black Series range have a lifetime guarantee.