The Mountz 020338 TSC5 Adjustable Cam-Over Wrench, 1/4" Sq. Dr., Range 1-5 N.m - Gedore # 059020 is a precision production tool designed to apply a set amount of torque. When the set torque is reached the unique cam action prevents over-torquing. This Torque Wrench was designed and manufactured to meet or exceed the accuracy and repeatability requirements of ISO 6789.2003 (+/- 6% of setting).