Jorgensen 3704-LD 4" Mini Light-Duty Steel Bar Clamp These are ideal for all types of light-duty clamping and is a workhorse for its size and design Used in hobby-craft, light-duty woodworking, home-shop and do-it-yourself projects Protective pads made of thick, durable plastic Maximum opening capacity is 4 inches Maximum reach is 2 inches from edge of bar to center line of screw Maximum load limit is 300 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 assembled with U.S. and foreign parts in our Chicago factory