On Fri, 10 Jun 2005 13:23:42 +0200, (Nick Müller)
wrote:

Don Valentine wrote:

We Brits are quite capable of working in metric thank you ;-)

Don't get me wrong, I think the Brits are among the best model
engineers.
But I had the discussion here about 3 years ago: BA is not metric. Look
at the standards of metric threads and you know why.


BA series was created in 1890's

At that time there was _nothing_ like metric threads and this also
explains why BA isn't metric.

Nick, are you talking metric threads measured in metric units or are
you talking SI, not necessarily the same.
Mike in BC