Patent ID: 8408102

Claim:
A wrench for engaging a workpiece having a plurality of flats, the wrench comprising: a head portion, including: a pair of fixed jaws; and a pair of movable jaws being limited to movement in a lateral direction relative to the pair of fixed jaws, the pairs of fixed and movable jaws being configured to engage the workpiece in at least one of a flat engaging position and a corner engaging position; a sliding mechanism for coupling the pairs of fixed and movable jaws, the sliding mechanism including respective identical web grooves formed within a movable jaw web and a fixed jaw web, each of said web including respective fixed and movable bosses, the mechanism further including a shaft extended through the bosses; the flat engaging position comprising the pairs of the fixed and movable jaws being engageable to one of the flats on each one of opposing sides of the workpiece; and the corner engaging position comprising the pairs of the fixed and movable jaws being engageable to an adjacent pair of the flats on each one of the opposing sides of the workpiece.