Bullard Dynatrol VTL 3/8" 5/8" Variable Feed Disc Lot of 4 Part# 339669 402040 I think these are old stock with decades of shelf wear - could be used. Look at pictures to get an idea of condition. 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" Bullard Dynatrol. Part could be for a different model though as they had multiple machines. Policies and FAQ's Check out my other items! Be sure to add me to your favorites list!