Jorgensen 2-pack 30 Bar Clamp Set, 90° Parallel Clamp Cabinet Master. Maximum opening capacity is 30 inches. Heavy-duty steel jaws and high-carbon steel bar for up to 1500 lbs. A reversible head enables spreader clamping and a clamp stand provides easy adjustments, while the maple handles won't wear down your hands. Reinforced steel and castings protected by orange plastic add strength to the jaws. Ideal for a wide range of woodworking such as panel glue-ups, boxes, cabinets, frames and raised panel doors.