Knipex Cobra XXL. 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 Box-joint design for high stability due to double guide Pinch guard prevents operators' fingers being pinched. . Capacity half-moon Capacity in square millimetres Square drive Capacity square Capacity step-like square Capacity triangular Clamping width hexagon Clamping width round Clamping width square Clamping width