Abstract: A workbench having a pair of vise assemblies mounted on a frame with each vise assembly having a movable jaw and a fixed jaw, wherein one vise assembly is operable with a lead screw to move towards and away from the other vise assembly which is fixed and arranged parallel to the movable vise assembly. Each movable jaw is operable with a screw threaded rod to move towards and away from each corresponding fixed jaw, and is capable of swivelling so as to enable the clamping of an irregularly shaped workpiece between the fixed and movable jaws. The pair of vise assemblies with their frame are mounted on a collapsible supporting structure which may be folded when not in use.