No more time-consuming test-adjusting to achieve the correct size. With the Knipex Cobra water pump pliers, you can simply position the upper jaw to the workpiece, push the button, and close the lower jaw. And you'll also be able to say goodbye to blood blisters you get with other gripping pliers. With safety its first priority, Knipex has designed a built-in pinch guard that prevents blood blisters on your hand.