Push the button for adjustment on the workpiece, Fine adjustment for optimum adaptation to different sizes of workpieces and a comfortable handle width Self-locking on pipes and nuts: no slipping on the workpiece and low handforce required, Gripping surfaces with special hardened teeth, teeth hardness approx. 61 HRC: high wear resistance and stable gripping Box-joint design: high stability due to double guide, Reliable catching of the hinge bolt: no unintentional shifting, Guard prevents operators fingers being pinched, Chrome vanadium electric steel, forged, oil-hardened.

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