Necking pliers for pipes and the like

摘要

The necking pliers comprises a first arm having a U-shaped cross section and forming a nose in which is made a notch, with the notch defining blade-forming edges. The first arm is articulated to a second arm via a first pin placed near one end of the nose. The second arm defines a set of ramps for actuating at least one blade articulated on a second pin of the first arm, with the second pin being placed beyond the notch.