I'd have to say that I haven't noticed much use of metric whenever I've been in the USA.

True, most of the stuff we do is with imperial measurements. But there was a period in recent history where a big "move to metric" push was on. It fizzled, but we still have some leftovers from that period: 2-liter soda bottles, for example. So we're not complete knuckle-dragging troglodytes, we're reasonably familiar with metric measurements.

But metric tools have never been a problem because such a huge percentage of our cars and electronics come from overseas. It's just as easy to buy metric tools here as it is to buy imperial-measurement tools.

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Tony Fabris