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 approx. 61 HRC: high wear resistance and stable gripping, Weight: 2.6235009178 Pounds, Manufacturer: Knipex