- Joined
- Jan 14, 2019
- Messages
- 9
I obtained these pieces in an auction, with some unrelated stuff, and don't have a clue what machine they go to. Each one is a different thread pitch from 4tpi to 40tpi, including at least one being a left hand thread. I imagine they are to facilitate cutting threads on some kind of machine, but thats my guess. Can any body help me with this?