With 272kg/600lbs of sustained clamping pressure/holding force, the IRWIN QUICK-GRIP Heavy-Duty One-Handed Bar Clamp is the most powerful one-handed bar clamp available. It's ideal for heavy-duty applications such as installation, demolition, and rough glue-up. Dual-removable swivel jaws with removable, non-marring full-face pads provide even distribution of clamping force on the workpiece. The pads can be easily removed to activate the swivel jaws to maintain full contact and combat flexing at extreme pressure, or for conforming to irregular shapes. An adjustable foot provides added support so the clamp can sit upright on a table or work surface, making it perfect for gluing panels or cabinetry.