Product DescriptionNo more time-consuming test-adjusting of the correct opening size. Just position the upper jaw to the workpiece, push button and move close the lower jaw, ingeniously simple. 30% more capacity than a conventional pipe wrench. Self-locking on pipes and nuts due to teeth set against the rotation - no slipping on the workpiece. Pinch guard prevents fingers from being pinched. Adjustment at the touch of a button. Has 18 adjustment positions to adjust to hex nuts up to 1 27/64" and round pipe up to 1 1/2".Amazon.comSelf locking on pipes and nuts ().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.The unique self-locking adjustment and induction hardened gripping teeth means that once it's set, it stays. There's no slipping and no need to waste strength squeezing the pliers - ensuring operator safety and more efficient work. Cobra's unique jaw configuration can grip any shape object - flat, round, hex, or square. It also eliminates nut burring to avoid stripping pipes, nuts, or bolts. Additionally, the Cobra's newly redesigned adjustment provides 30 percent more gripping capacity than previous models.A simple push of the patented push button adjustment maintains jaw size setting and gives you the correct size opening every time. Just position the upper jaw to the workpiece, push the button, adjust the opening, and close the lower jaw. And it's easily done with just one hand for trouble-free operation in confined spaces. Cobra water pump pliers are constructed from chrome vanadium electric steel, an innovative high alloy, oil tempered steel that ensures longevity. And their thin head design helps you get into spaces other pliers can't, so there's no need to change tools when working in tight confines. Patented push button system ().Quality in Every DetailSometimes we give our pliers a really hard time. We try to destroy them to find out what makes them good and long-lasting. Because we don't want to leave anything to chance, we take a long, careful look. The steel Knipex uses is precisely hardened with a maximum of 0.8 percent carbon and defined parts of chromium and vanadium, guaranteeing optimum cutting performance and service life - even though it requires special production and costs a bit more. But our high product demands require this.The rivet of our high-leverage diagonal cutter also has to stand up to a lot of stress. That's why we literally give it backup: we forge it straight onto the pliers. This means extra effort as we have to precision mill the rivet to a few hundredth millimeters. But satisfied users are worth this effort.Knipex also looks closely at the small details. The angles, the sharpness, the hardness, the toughness of the cutting edges. The precision and smooth movement of the joint. The handle design and the finish. We keep reviewing these subjects, we research, we test, and we improve our pliers.About KnipexHeadquartered in Wuppertal, Germany, Knipex is an independently-owned family enterprise steeped in tradition and specializing in the manufacturing of high-quality pliers. It all started back in 1882 when C. Gustav Putsch set up his own forge shop in Cronenberg (now a suburb of Wuppertal), and the company is now run by a fourth generation of that family. The world's leading brand in pliers today, Knipex is focused on the performance, service life, and ergonomics of its tools in order to meet the high expectations of professional users.87 01 180 Cobra Pliers, 7-1/4-InchAt a GlanceAdjustment at the touch of a button directly on the workpieceFast, firm adjustment directly on the workpiece