Originally posted by SteveRussell
<br />Hello,
It's easy to resharpen your pen mills with a small diamond file. I've done this for 12 years and it's a very simple procedure. I use a small vise to hold the cutter head (removed from shaft) and a small (1" or so) DMT diamond file. Just line the flat face of the diamond file up with the rake on the tooth and give it a few strokes. Do not file the tooth flat, you must preserve the rake angle.
Rotate the head around and give the same number of strokes to the remaining teeth. Very simple and easy. It takes about a minute or so and you're ready to go again. Take care and all the best to you and yours!