The sharpening of this type of scissors is often the most complex, they are equipped with denser or less dense toothed blades which, to work correctly, require centesimal tolerances.
For this type of scissors, we are able to recreate the serration which has now become smooth due to wear.
In this case, the workmanship requires extreme precision in order to obtain a good result that only a good craftsman can achieve.
This process you see is the same one we also use on the teeth to remove the "burr", metal residues created by previous processes called "gumming".