Modifiche

Usually the tip of the nib is realized melting directly on place an iridium ball (or equivalent material), and then is cut in two dividing the tip in the two ''[[tines]]'', for the realization of the ''[[slit]]'' through which the ink coming from the feeder, necessary for the [[operation]] of the fountain pen, must pass and suitably smoothed to offer a better fluency. In general then, both to allow the air to escape from the conductor and to reinforce the end of the wing cut, the nib is equipped with the so-called "aeration hole", even if in many cases the only purpose is that of greater mechanical strength and flexibility. Some nibs also, such as the [[Triumph Nib]] of the [[Sheaffer]], or the central nib of the [[Omas 361]], are specially designed and machined to write from both sides, including therefore also the so-called [[dry side]].

Usually the tip of the nib is made melting directly on place a ball of iridium (or equivalent material), and then it is cut in two dividing the tip in the two ''[[tines]]'' for the realization of the ''[[slit]]'' through which the ink coming from the feeder must pass, and then suitably polished to offer a better smoothness. In general then, both to allow the air to escape from the conductor and to reinforce the end of the ''[[slit]]'', the nib is equipped with the so-called "air hole", even if in many cases the only purpose for it is to give a better mechanical strength and flexibility. Some nibs also, such as the [[Triumph Nib]] of the [[Sheaffer]], or the central nib of the [[Omas 361]], are specially designed and machined to write from both sides, including therefore also the so-called [[dry side]].