Seeing if the nails can be hardened to great hardness

Seeing if vibrations for certain amounts of minutes and times can make the nails harder.

Maybe even to a point that the nails can open up a can of tunna or salmon.

Doing it natural by constantly grinding on a surface that causes vibrations but do not make the nails shorter or with a vibrating device where you can place the nails on.

By Jeffrey Koelewijn
19-February-2018

I already started an experiment myself and I got positive results, though not amazing yet.