DIN 5234, with resistant gripping surfaces thanks to induction-hardened teeth, optimal power transmission thanks to the handy long lever arm and slim design, the specially arranged lower jaw ensures 100% contact with the workpiece and offers excellent hold and a long service life, the universal corner pipe pliers also grip small and large pipe diameters in hard-to-reach places, forged from one piece, without welded parts. Material: VANADIUM STEEL.