[modeleng] Re: To BA or not to BA, that is the question.

Well Al, to my eye the standard metric thread looks a bit coarse on a model,
and the Metric Fine looks a bit too fine, maybe it's just me being used to
BA threads in this situation.



> This ignorant Yank has a serious question: will Metric
> threads always be "fine" enough for model work?  If
> they will, go Metric, you poor chap.
>
> Al Messer, in old fashioned "Inch measurement"
> America.  LOL!
>
> --- Tony Wells <oaksfield@xxxxxxxxxxxxxxx> wrote:
>
> > As I get all of my bits and pieces pulled together
> > for my first practical machining exercises, I have
> > noticed that all of the nut and bolt sizes on the
> > various plans are BA's. As these plans are all quite
> > old they probably predate the modern metric taps and
> > dies that are all I have. Is there any reason why I
> > should not use the nearest metric equivalent, or
> > should I save up for a set of BA ones please? I have
> > just been on Tracy Tools' web site and they have a 0
> > to 10 BA set of taps for £18 and the matching set of
> > dies for £20, plus another £5 for the correct
> > tapping drills, which comes to £43, plus another
> > £8.60 in post and packing. I am not overly mean but
> > I can buy an awful lot of metal to machine for the
> > total cost of £51.60! This assumes that I will not
> > need any for 11 and 12 BA, which would be extra.
> > Thanks in advance,
> >
> > Tony Wells.
> >
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>
>
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