Michael
I like to use 5C collets either in a collet chuck or a 5C collet block. For standard threads (where you can get a die), I’ll make a couple of passes with a threading tool, then use a die mounted in a die holder in the tailstock, die will cut the threads to full depth.
I like to use 5C “Emergency” collets; they can be had in brass, steel and even plastic. You machine them to the size you need, you can even thread them.
I’ve got a few threaded for the standard threads that I use. Neat thing about a 5C collet block is that you can take it out of the lathe, thread the screw into a 5C collet then mill the screw slot.
Not sure what kind of threading tool you have, but I like the “lay down” type inserts, they make them in full profile, thread specific, but as the name says will cut the full profile of the thread, root and crest.
V/R
Mike
