Combined pliers, clamp and wrench

A wrench comprising a first member having a first jaw at one end and a first hand grip at the other end, a second jaw between the ends of the first member slidably mounted on said first member for linear movement toward and away from the first jaw, a second member having at one end a first pivot to said second jaw and having a second hand grip at its other end, a toggle link extending from an adjustable abutment between the ends of the first member to a second pivot on the second member, said toggle link and said second member forming a toggle between said abutment and said second jaw for moving said second jaw toward said first jaw as the hand grips are squeezed, a workpiece supporting surface on said first member, a chain having one end anchored to the first member and its other end extending over a workpiece on said surface, and means for transferring force from said second jaw to the other end of the chain for tightening the chain against said workpiece.