Skip: I had to do this all the time when I use to work. 3 M made a bunch of wheels that took care of this problem for us most of the time. Most were fine grit 400 and 600. they came to us 4 inches in diameter. They were mounted on a old polishing machine like what the jewelers use. The rest of the time we used a magnetic tumbler. Every thing that we put in there came out looking like it had been hand polished. We also had a set of abrasive wheel that went in a foredom flex shaft. They were 7/8 inch in diameter and came in any grit you wanted. from 80 to 1600 and now I see they even have one at 2000. They have square edge and knife edge even points.

So don't work any harder that you have to. So don't let that arthurius get the best of you. Let me know if I can help.