Axisworks milled .030 from the back end of the bolt body of my Savage 110 rifle. I'm not really sure exactly how they went about that, even tho I was standing right there watching. They had to change out some tooling, in a CNC milling machine, and then they had to do some profile programming, I think is what Micheal was doing, and then it cut all three surfaces. Made a really nice looking surface. Put it back together, and it works wonderfully ! I'm very impressed that Eric, the owner, took the time to do that right then, and allowed me to remain in the shop while they did it, on a Friday afternoon. They make a really nice looking muzzle brake, as well. I can't hardly wait to get my next build going, and they're doing it.