Wright Tool: Open-End Style and Combination Wrenches
October 31, 2011
Metric sizes are available for the WrightGrip™ open-end style and combination wrenches, in a range from 7 to 24 millimeters. The WrightGrip feature of the new metric-sized wrenches ensures that the open-end wrench fits more snugly on the fastener, preventing the jaws from spreading and keeping the wrench from slipping. The design incorporates a series of strategically placed teeth or grooves on the insides of the wrench’s two jaws. These teeth allow for a better seating of the wrench on a fastener. One fastener corner locks into the groove so the fastener won’t slip or twist out of the wrench under load. The WrightGrip design also includes a slight enlargement of the wrench opening’s back end. The additional metal in this high-stress area helps to stiffen the wrench jaws, thus decreasing the chance of their spreading under heavy loads. In addition, the shape of the wrench’s back end is modified. The modified U-shape design further reduces stress and improves performance.