Knipex 87 01 300 SB Cobra Pipe Wrench / Water Pump Pliers 300mm The KNIPEX 8701300 Cobra offers the performance and comfort of water pump pliers while being lighter in weight and having a greater gripping capacity than comparable pipe wrenches. The Cobra can grip a 2. 3/4 Inch pipe fitting and weighs 50 % less than a pipe wrench, which has a much lower gripping capacity. With its handy length of 300 mm, the Cobra XL also fits into a plumber's tool kit. KNIPEX Cobra - the Hightech Water Pump Pliers. No more time-consuming presetting of the required opening size. Just position the upper jaw to the workpiece, push button and move close the lower jaw, ingeniously simple. Features: 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 slip