Re Threader - What is this tools proper name please ?

[rustyric]

[EVILDR235]

I would call it a spindle / axle re-threader. That is what I always heard them called by old time mechanics.

EvilDr235

[leg17]

That is a screw plate used to form threads in malleable material, such as wrought iron.
It does NOT cut threads but swedges them, or forms them.
Commonly used by metalsmiths of all kind prior to the Civil War.
Jewelers and watchsmiths still use them some even today.
This particular one has sizes that would be found in a machine shop for general use.
Nuts would have been custom made, (by a similar process), to fit.

[leg17]

Is it for sale?

[Chillylulu]

Most threaded rod is rolled, not cut with dies.  Some are pressed,  I've seen a 3/8" rod that looked like threads but it was only concentric rings.

I've always thought if those as chasers, not cutters.

Chilly

[bill300d]

Nice job on the description Leg, I couldn't have said as well in as few words.