Thread: How to engrave scales?

True engraving is usually done with an engraving gun but it can also be done by hand. They sell such instruments usually tipped with sapphire or diamond depending on the hardness of the material. Of course they have laser engravers which commercial engravers use these days. Otherwise there is an encrusting process like the foil materials you see on many celluloid scales like DD does on their higher end models. I imagine that's done with the right amount of heat or pressure.

There are several other processes depending on exactly what you want done.