Knipex 87 01 560 US 22 in. self-locking Cobra extra-large water pump pliers 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 XXL comes along with the weight of a 2 In. pipe wrench but offers a back-up gripping capacity up to 4-1/2 In.. 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.