These Knipex Pliers Wrench are all you need.  They can replace a full set of inch and metric open-end wrenches.  With smooth jaws for damage free installation, an adjustable tightening tool, a zero-backlash jaw surface, and a laser etched scale they are the best all in one tool for your toolkit.  Made of chrome vanadium electric steel with a reliable catching hinge bolt, these forge oil hardened pliers wrench are the ultimate tool for your project or toolbox.