Viragrip® pipe wrench, 6in. to 48in., for tubes of Ø 3/4in. to 6in. Reinforced handle and head for use in extreme tightening conditions. Moving jaw made from treated forged steel, with 2 springs allowing effective self-tightening of the tube and providing clamping force identical to that of a ratchet. High-frequency double hardening for gear teeth. The fixed jaw can be replaced.