The Crescent Flip & Grip Wrench Multi-Tool is a pretty versatile wrench that can hide in your pocket or glovebox for quick fixes. The Crescent Flip and Grip has an adjustable jaw that opens surprisingly wide and has a spring loaded ratcheting action. The flip-out wrench also has a locking pivot. This multi-tool version also sports a knife, Phillips screwdriver, flathead screwdriver, can opener/bottle opener, and a wire stripper.
Video of the Crescent CFW2 after the break.