Bullard Dynatrol VTL Lot of 27 Brass Plugs These are used most show some kind of corrosion on them. You will want to clean these up and will probably want to replace the o-rings on them. I bought a pallet full of spare Bullard Dynatrol parts from a factory that no longer uses the Bullard Vertical Turret Lathes. I'm not sure on the exact application, but a lot of the parts and boxes of parts are labeled 46" 66" Bullard Dynatrol. Part could be for a different model though as they had multiple machines.