Jorgensen 3736-HD 36-Inch Heavy-Duty Steel Bar Clamp JORGENSEN, Heavy-Duty Steel Bar Clamps are made for all types of heavy-duty clamping Used by cabinet-makers, woodworkers, metalworkers, or for home shop and do-it-yourself projects Protective pads made of thick, durable plastic Maximum opening capacity is 6 inches Maximum reach is 36 inches from edge of bar to center line of screw Maximum load limit is 1,000 pounds Ideal for do it your selfers, hobbyist, carpenters, cabinet makers, woodworkers, metalworkers and professional trades people of all types Pony Tools Inc. (founded 1903) is the manufacturer of the bar clamps and they are made with U.S. and foreign parts in our Chicago factory