With 600 lb of sustained clamping pressure/holding force, the Irwin? QUICK-GRIP? XP600 (extreme pressure) 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-locking 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 ideal for gluing panels or cabinetry. Plus, the unique pistol grip design and Quick-Release? trigger provide simple, one-handed operation. The Irwin QUICK-GRIP XP600 one-handed bar clamp delivers maximum power, versatility and stability.