You are honestly better off biting the bullet and learning to do single point threading. You'll need it. 32mm isn't that small so there's lots of room to work on the inside thread and the 1mm pitch isn't very deep.
Originally Posted by Prokop
OTOH, if you're set on buying the nearest equivalent tap and die you need to ask for a UNS 1-1/4 x 24. The tap manufacturers will make you one if you pay them, and you can call customer service for MSC or McMaster Carr to set it up. The next best choice might be UNEF 1-1/4 x 18 which is closer to a 1.4mm pitch FWIW.
"I am often asked how radio works. Well, you see, wire telegraphy is like a very long cat. You yank his tail in New York and he meows in Los Angeles. Do you understand this? Now, radio is exactly the same, except that there is no cat." : Albert Einstein