Knipex Cobra Water Pump Plier 400mm 8701400SBKnipex Cobra Plier 400mm Greater gripping capacity but much lower weight than comparable pipe wrenches Fast push button adjustment directly on the workpiece, no unintentional slipping of the joint 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