Standard 3/8x10 tap will work as well.
Most 3rd party 3/8x10 shafts fit both the regular and the modified pin.
I’ve taped a regular shaft and it fitted a modified pin easily.
My Revo would not fit my Carmeli, so I took it to Ariel and literally 1 turn using his hand strength and a tap and it was done....maybe 15 seconds. Never had any issues