Mils v. Mils

From my early editor days, I’ve expressed thousandths of an inch in numerical form, not as X mils. So, for example, instead of “1 mil,” I would write “0.001.”

After 20 years, I am rethinking that convention. (I keep hoping it will all be overcome by a shift to metric, but that’s not just happening very fast now, is it?) And I am willing to accept reader input. Which do you prefer: mils or numbers?

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About Mike

Mike Buetow is president of the Printed Circuit Engineering Association ( He previously was editor-in-chief of Circuits Assembly magazine, the leading publication for electronics manufacturing, and PCD&F, the leading publication for printed circuit design and fabrication. He spent 21 years as vice president and editorial director of UP Media Group, for which he oversaw all editorial and production aspects. He has more than 30 years' experience in the electronics industry, including six years at IPC, an electronics trade association, at which he was a technical projects manager and communications director. He has also held editorial positions at SMT Magazine, community newspapers and in book publishing. He is a graduate of the University of Illinois. Follow Mike on Twitter: @mikebuetow

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