Peter wrote about the 22x 1 thread. We used it "back in the day" to thread the ends of Cinelli bars so you could insert a Campy crank dust cap in as a end cap
Brook Watts Longmont Colo USA
>Kevin, The thread size is 22mm. X 1.
>This is the same size as the threads on a Campagnolo crank extractor.
>Years ago I ground one of my extractors as a tap to use for
>threading silca pumps and it worked great.
>As an added bonus I found I could use it to fix, (chase), damaged
>threads in NR-SR crank arms. Some had bad threads from cross
>threading, or partly stripped from someone not threading their
>extractor in far enough then "pulling" some of the threads out.I
>saved quite a few with this tool!!!
>You might find a 22X1 at an industrial supply store.
>I hope this helps!