^ That's a generous offer. Time is not a major issue, and the speed control box would take at least a week to arrive. I could buy one locally (Woodcraft or Rockler store) but that would cost about $60 compared to $35 on Amazon. There are other more pressing issues to bring this job to a close.

I am wondering though if there might be other issues that are part of the factory recommendation of only 14K rpm. My neighbor at my shop is a metal fabricator, pretty knowledgeable on tools and he says it's very unlikely that the carbide bits would fly off. Would be an hellacious accident if they did, however. Then again, I'm not sure the vibration on this thing even at 14K would be acceptable.

Tom, I took your advice and called around. So far, the two rental routers I found are also 23K.

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Te futueo et caballum tuum

1986 300SDL, 362K
1984 300D, 138K