They are hand tools of cast steel, composed of two arms and a pivot pin. At one end of the arms are claws, cuts and tips, which are tempered and tempered. They serve to secure by tightening, cutting, folding, placing and removing certain parts in the assemblies. The characteristics, sizes, types and shapes, vary according to the work to be performed.
The main types of pliers are:
Universal pliers, cutting pliers, nozzle pliers, pressure pliers and moving shaft pliers.
