These “Grip-lock” pliers are like automatically adjusting Vise-Grips. Instead of a screw they have a spring-loaded slide that is meant to lock in place at just the right moment so the jaws start exerting pressure when you want them to. Like all such automatic mechanisms, it doesn’t work very well.
Location: Box 25
Have you used this tool? Think my description is all wrong? Have a better example? Comment now with any thoughts you have about this tool!