to do threading...
you need a turning tool to take it to the correct diameter
then you need a threading tool (triangle with a pointy finger hanging off) to do the threading
doin it on a CNC Lathe (how i do all my threading because im lazy)
would be turn, thread, done.
male M12x1.0 thread dim's
Minor Diameter 10.917/11.153
Pitch Diameter 11.350/11.510
Major Diameter 12.000/12.304
(all dim's in MM)
are you sure the 12mm isnt actually 1/2"?
Ryan “Super_Stanchy” Stanchfield