additional quick adjustment to the workpiece by sliding, connects the proven, secure locking of the hinge pin with an additional sliding function, which makes working in very narrow and inaccessible work areas easier, the adjustment can be made directly to the workpiece by simply sliding, secure locking of the hinge pin in the first load, then the reach of the pliers is fixed and can only be adjusted by pressing the button, to activate the sliding function again, the hinge pin is pushed out at the push of a button and the pliers are fully opened once, chrome vanadium electric steel, forged, multi-stage oil hardened