Quote Originally Posted by golum View Post
OOOO that looks interesting.......dunno about them funny american thread sizes though.....Bet the thread on the coronet is whitworth or BSF or BA or even UNF or UNC.....time to get the thread gauge out.....
I have seen them on Hercus lathes, they are whitworth threads.
I will be looking for them when I get to that stage.

http://img.photobucket.com/albums/v3...IM000107-2.jpg