Irwin 1964719 Quick Change Bar Clamp/Spreader (1 Pack)

New and improved one-handed clamp delivers 300 lbs. of sustained clamping force, and locking swivel jaw for evenly distributed clamping force. Patented locking swivel jaw. 3-1/4" throat depth. Removable pads. Quick change screw. I-Beam bar reduces flexing and bowing.