[SEL] drill sizes for 7BA clear and 7BA tap

[David Heggie]

Hi All. 

Can you please advise me where to look, or  if you have the information on
the drill size in inches or metric to drill a 7BA clear and a 7BA tap. I
also need the same for BA 2 thru 8.

I am working on a Stuart 10V . Any other information would be most
appreciated.

I am retired and learning to operate a mill and lathe and wish to make
different models. I have some hit and miss engines and a range of maytag and
iron horse kick start engines.

thank you
david heggie
lachute,quebec canada