Keep in mind fellas, peening will not work with lettering that has been inscribed by actually removing metal, engraving. Peening only works with metal that is roll marked or stamped where the steel is displaced, just run your fingertip over the lettering, it's easy to feel the raised edges. Some figures are problematic ...numeral 8, upper case E and H, start with the easier figures until you get the hang of it.
