by shill » Sun May 16, 2004 4:30 am
A "mil" is usually an abbreviation of "milliinch" (0.001 inch), although it can also be a (non-standard) abbreviation of millimeter. I will assume you mean the first one, since you also refer to microinches. In that case: mils (milliinches) * 1000 = microinches; mils (milliinches) * 25.4 = micrometers.