Description Fast adjustment directly on the work piece: fast and comfortable handling Fine adjustment: ensures optimum adjustment to differently sized work pieces and user-friendly handle position. Number of adjustment positions see table Secure catching of the hinge bolt: no unintentional shifting Box-joint design: High stability because of double guide Self-locking on pipes and nuts: No slipping on the work piece and low hand force required Gripping surfaces with special hardened teeth, teeth hardness approx. 6" HRC: low wear and secure gripping One-hand adjustment Guard prevents operators? fingers being pinched Favorable lever action: Optimum transmission of force Chrome Vanadium electric steel, oil-hardened and tempered