Professional pliers for water pumps, pipes and 4- and 6-angle bolts • Strong and durable, made of chrome vanadium steel (crv) with solid drop forging. • widened jaws 6 mm thick increase the gripping surface and further strengthen the pliers. • the serrated gripping surface hardened by induction ensures a firm grip even on smooth pipes furthermore, thanks to their diamond shape, they ensure optimum force transmission • have adjustable joint in 7 positions allowing the jaw opening to be adjusted depending on the diameter of the pipes • dip-insulated handles and specially shaped handles prevent the pliers from slipping from the hand and increase working comfort