Facom 505A Series Large Capacity Lockgrip Pliers - new for 2015. See video. Features of this plier include........

• Large Capacity (up to 135mm/5.3") - Round to 135mm (5.3"), Hexagonal grip to 125mm (5") and Angle Section to 70mm (2.75")
• Unique unlock trigger allows use with 1 hand and gives optimum security (ie, you can hold your workpiece in one hand and release the pliers with the other)
• 5 position rack for quick adjustment to a wide range of sizes
• Jaws engineered for secure grip - 17mm wide jaws, serrations along full jaw length, machined groove in the upper jaw holds small round sections
• Extended reach beyond seams and edges
• Overall length = 274mm (10 3/4")
• Chrome finish

This product replaces the 505 pliers which have been unchanged since 1992. I still have a few of the Facom/Proto version of this plier (made by Facom with the Proto branding) at a considerably cheaper price.