SPECIFICATION: The IRWIN Quick-Grip XP is the world's first one-handed bar clamp, with five patents pending, specifically designed for gluing applications. The clamp offers "Xtreme Pressure" which is up to three times greater than all of its competitors. But alos the well loved features of the original Quick-Grip Quick-Change have been retained. Increased clamping depth of 95mm vs 75mm of current Quick-Change Up to three times more clamping force than other one-handed bar clamps Quick-Change spreader function no tool required Non-explosive release mechanism Free sliding I-beam bar