Crankshaft grinding - video

[Frank S]

I agree the video is hard to watch, but the real crime happens 10:14 into it. He says says "We're not Rick Hendrick here, this isn't Robert Yates...a thousandth or two is not going to do anything..."

I could put up with the bad camera work, but not that attitude.

attitudes like that guy had is exactly why they will never get to do the ultra high performance grinding I wouldn't want to see what he does with camshafts.
While technically he is correct being off a thousandth here or a thousandth there may be acceptable for a regrind everything become accumulative. If the cumulative amount of half a millimeter off in a series of holes in red iron can be enough to cause a beam to be rejected on a super tall building, then blasé' attitude of the total or 8 to 10 thou on a shaft spinning several thousand RPMs is not something I want to hear from the guy grinding my crankshafts even if it will not cause failure