Who engraves just 1 pen?! Generally, when I want to engrave a pen it is at least 10 of them. While I have found I don't need the rotary tool to engrave 2 lines at a 14 point size on the side of the pen and they tend to engrave in sub 1 minute each with the D1 Pro 20w, it is still a pain to have place each one on my honeycomb. Here is a tool that will do 20 at a time and... even better, how to use it.