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A "mil" is 1000th of an inch. 10mils is a very tight tolerance (100th of an inch).



An alternative conclusion is that a mm ("mil") is NOT a 1000th of an inch.

And why would it be ? The milimeter is part of the metric SI system of units. An inch is not "metric" in any way or form.

Wouter


The Inch is defined as 25.4mm. So I guess is Metric in some way or form.

Oh, and mil is more commonly used as 0.001 of an inch than as an alternative convention for mm.

Chris.

Dave Ingram is my president. tcdyc rules