Magic Grip Tool For those inexperienced with apparatuses, you may end up asking what a wrench is. Indeed, a wrench is apparatus that is utilized to for grasping when endeavoring to turn an article or a segment. These segments incorporate nuts, screws, and different kinds of pivoting latches. The term wrench is an American standard term for this apparatus, yet for the British the term is spanner. This apparatus is produced using a strong material like the chromium-vanadium combination.