Material High quality chrome-vanadium molybdenum steel, tempered. Application For rapid and optimum gripping and holding of pipes and angular profiles such as hex nuts in the installation area. Standards DIN ISO 8976. Design Fast and easy-to-adjust water pump pliers, with automatic adjustment of the box type, precision-stepped joint. Optimum adjustment to the object to be gripped. Long durability achieved by additional inductive hardening of gripper jaws. Head shape Narrow head, therefore also appropriate for work in small spaces.