The knipex 87 22 250 cobra quickset high tech water pump pliers are professional grade adjustable pliers designed for fast, one handed operation in confined spaces. These innovative water pump pliers combine the proven reliability of traditional cobra adjustment with a revolutionary push button quickset function that enables instant jaw positioning directly on the workpiece. The quickset system allows you to fully open the pliers, push them onto the workpiece, and achieve immediate grip without manual adjustment. Simply slide the pliers handle to position the jaws on the workpiece whilst the tool is in use. The hinge bolt locks reliably with the first application of force, fixing the gripping width securely until you release it via the push button. This design is ideal for plumbers, heating engineers and maintenance contractors working in tight or awkward locations where traditional adjustment would be impractical. The 25 adjustment positions provide precise sizing for pipes up to 50mm diameter and nuts up to 46mm across flats. To reactivate the sliding function, press the push button to release the hinge bolt and fully open the pliers again. Features and benefits bull quickset push function enables one handed adjustment directly on workpiece bull 25 adjustment positions for versatile pipe and nut gripping bull reliable hinge bolt locking system secures jaw position under load bull ideal for working in confined and inaccessible areas bull handles up to 50mm diameter pipes and 46mm nuts specifications adjustment positions 25 capacity for pipes diameter Ø 50 mm capacity for pipes, inches diameter Ø 2 capacities for nuts 46 mm