I have a job where I need to produce several thousand externally threaded 304SS expansion rods RH thread on one end, LH on the other. I'm wondering how to go about this properly. I have a great high-speed mill, a crappy manual lathe... wondering if there is something akin to a tapmatic that I can mount on the lathe... I've looked at geometric die heads, but they all seem to be specific to screw machines/automatics... anyone?