LARGE 400MM SIZE: These water pump pliers measure 400mm (16 inches) in length, providing excellent leverage for heavy-duty tasks. FAST ADJUSTABLE JOINT: Features a tongue and groove joint design that allows quick and easy adjustment to grip various sizes of pipes and fittings. VERSATILE USE: Ideal for plumbing installation and repair tasks, including tightening and loosening nuts, bolts, and pipe fittings. DURABLE CONSTRUCTION: Built with hardened steel jaws featuring serrated teeth for a firm, non-slip grip on workpieces of varying shapes. COMFORTABLE HANDLES: Fitted with red non-slip handle grips for improved comfort and control during prolonged use.