Ok I have a set of taps and dies that are well old and of interesting quality.
So I am looking at buying a few quality sets (1st 2nd and 3rd taps) so if I need to make fresh threads I can.
UNF and UNC will do 90% of the main threads?
that it? Or too many or not enough!
are there any 1/4 UNC anywhere?
old Skool A engine and box.
oh forgot better sort drill as well.