For sale is a Procunier 3E Lead Screw Tapping Head. This is a production grade lead screw tapping head, that is suitable for automated production.
It comes with a bunch of lead screws, a foot pedal, and a wrench. It has MT2 shank to fit MT2 spindles. I was told that it works, as it was mounted on a working drill press and came from a bankrupt factory that was well maintained, but fell victim to greedy bankers.
The 1/4" tap that is in the head is not included.