As usual, chuck has the "Right Stuff"! The original tool was, I believe, made by Miniature Machine Corp, and they Trijicon made a slightly nicer version, TA03 as I recall. The only problem is, this wonderful tooling is just under $300! Justifiable if you are a full time 1911 smith, or an enthusiast with a large 1911 collection. Otherwise, send it to chuck..... CC