Tool consisting of two steel, crossed yet mobile arms around a hinge, of which the longer parts make up the handle, while the shorter parts, curved and ending in acute edges, the jaws. In the typical carpentry pliers, the jaws are not sharp, being essentially used to extract nails from wood: thus they must be able to tighten and not break off the end of the nail (for this reason the most adapt tools are nippers). In some models, a claw is present on the extremity of one of the arms of the handle, for the same function of removing nails.