Quote Originally Posted by its_34 View Post
Thanks. I'm using a hole saw notcher. It's one of the cheap ones (no ball bearings, stamped steel guides) but it works for light use. It took quite a bit of shimming to get it to cut on center.

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I made some more progress today and will post some more pics later.
I have the harbor freight notcher and I have been happy with it. I do use good hole saws which I'm sure helps. I do plan to add some shims to mine.