Manufactured from Chrome Vanadium steel. Hardened and tempered with a chrome plated polished finish. Ratchet head features flip reverse action and push-through drive to allow torquing either clockwise or anticlockwise. Comfort grip with easy-to-use torque adjustment, locks when required setting is selected. Calibration tolerance in accordance with BS EN ISO 6789:2003. Suitable for commercial and industrial applications. Scales graduated in both lb.ft and Nm. Individually tested for ±4% accuracy and issued with an individually numbered calibration certificate. Supplied in storage case with padlock.