Wilton makes clamping applications easy with this 640 4' Bar Clamp (21804). Rapid acting and powerful, it's designed and constructed for hard, everyday production work. The quick action, no slip clutches are 3/4" apart and formed in the web for greater bar strength. The high strength ductile slide cannot slip or bind and is easily released. Plus, there's a steel handle with a comfortable wood crank for fast clamping.