it would be easier to bend the nail! And if you need more than one… dozen! Well-known methods in such cases is not justified: the tedious, time-consuming. The proposed device is universal, gives you the opportunity to facilitate the work, though not to say that absolutely. Its main advantage — simplicity. Only need a suitable steel billet, Yes tool. The size of The device is arbitrary and is determined by the predominant type of work. It is important that it has the slots for different diameters of nails, and a nut under the bend for the nails of different lengths. The pointed firing pin will help, if you need to punch a hole into metal edging strip.
Yu. SMIRNOV