Thanks, Keith. That's helpful but doesn't really answer my question. Sorry for not being clearer. On page 8A of the LEXL plans, the aluminum filler and steel tube both have a 45-degree inside taper to match the rubber mounts. How did you cut that 45-degree taper? Is there some kind of special bit that I could chuck in my small bench-top drill press? Or maybe it could be cut free-hand with a Dremel? I don't think I can get a hand-file in that space. -Chet