This is the rear cap to a Diana Skyhawk moderator that I'm going to be modifying to be used on a 15mm barrel. I have everything modified except the hole in this cap needs to be opened up to 15mm, from the current 13mm. Since my shop consists of a hand drill and tabletop vise, I don't trust myself to be able to bore this perfectly square. Looking for someone with a lathe or drill press that can run a 15mm bit through it. It's aluminum and the thickness of the area needing to be machined is just over 1/4", so it should be quite simple. Let me know if you're capable and what you would charge! Thank you!
