10in. "Cobra" Tongue and Groove Pliers Features and Benefits:Box joint construction A new generation of water pump pliers, for easier and more secure workingPress button action for fast and firm adjustment directly on the work pieceSelected jaw opening is positively ensured. 11-position adjustmentSingle hand adjustmentSelf-gripping on pipes and nutsThe guard prevents operators" fingers being pinchedThe unique jaw design shaped to eliminate nut burring.Ergonomic design gives you power with comfort.Approximately 60 HRC hardness of gripping teeth.Made of chrome vanadium steel and oil hardened.