KNIPEX Cobra® 87 01 250 high-tech water pump pliers provide push-button adjustment directly on the workpiece, with 25 fine-adjustment positions for pipes, nuts and irregular shapes. The self-locking jaws use specially hardened teeth of approximately 61 HRC to grip securely with low hand force, while the box-joint construction and double guide improve stability. Made from forged, multi-stage oil-hardened chrome-vanadium electric steel, the 250 mm pliers have non-slip plastic-coated handles, a pinch guard, a 46 mm nut capacity and a pipe capacity up to 50 mm or 2 inches.