Are you skeptical that an adjustable wrench can work as well as a box-end, or even an openend wrench? You may think they can get you out of a jam, but only as a last resort. The Bionic Wrench will change that. It actually functions better than a box-end wrench because it automatically adjusts to fit all types of hex bolts and nuts, whether SAE or metric, and it applies pressure to the hex head bolt or nut on the flats (rather than the fragile corners) to virtually eliminate rounded corners. The new Interlock™ mechanism, integral to the wrench, keeps the jaws locked while under load, so it’s easier to use than ever. The Bionic Wrench works with both standard and metric fasteners so you don’t need to search for the correct-sized wrench! Available in Black Oxide and Nickel plating.