Anyone who has *ever* worked as a ski tech, automotive tech, in a machine shop, or for that matter, has done anything remotely mechanical in the USA would instantly realize from the context of his post that the "0.020" was in inches.
For better or worse, inches are still the default unit of measurement in the US. His number obviously couldn't have been in mm, since 0.02 mm (roughly one "mil") would be about 1/3 rd the size of a human hair, and that's much too precise a fit for an application like this. Since millimeters were the only option that are even vaguely close, it had to be in inches. Besides, what else would could the measurement unit have possibly been, light-years, feet, yards, meters?
If you were trying to bust the guy's chops for not specifying an otherwise obvious unit of measurement:
(a) Why didn't you just say, "How 'bout some units, buddy?";
(b) Busting chops for something that obvious is lame ; and
(c) If you did realize that it was in inches yourself, why did you then say, "It's nice to attempt to be helpful and all that, but when you don't have a clue, why throw out meaningless numbers?". He obviously had not only a clue, he had the exact number.
Tom / PM[ November 07, 2003, 11:19 AM: Message edited by: PhysicsMan ]