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