Originally Posted by saturnhr

Has anybody ever come across a 1.37 x 24 tpi thread cutting die. I understand that there are inside taps for bottom brackets, but I am talking about outside thread cutting. I also understand that a lathe can be used; however a die would make the job so much easier.
Purpose is to cut thread for track cogs on rear hubs and to covert old Campi track hubs to new BSA 1.37 x 24 tpi standards.
Thanks for any feedback