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

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.
> 
> MODEL ENGINEERING DISCUSSION LIST.
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