I wasn't that lucky in my shop. I didn't have a metal lathe. I did have a big external thread chaser. You selected the thread pitch and then dial it out until it fit. Sort of like a pipe wrench. Used it for axles and hydraulic cylinders.
The thread chasers that I wrote about were rectangular, kind of like a file without teeth, and then teeth machined on one end with front clearance and a tang on the other end for a file handle, they are used in a lathe on a hand rest to cut threads or dress up damaged threads,I wasn't that lucky in my shop. I didn't have a metal lathe. I did have a big external thread chaser. You selected the thread pitch and then dial it out until it fit. Sort of like a pipe wrench. Used it for axles and hydraulic cylinders.
Not easy to find, I had pretty much a full set in imperial, had to leave them when I sold my business, but can go back and borrow them when I have need. Seemed like most of them were made by Pratt & Whitney.I got them in Metric & Imperial. Have used them for years. Can't live in the repair world without them. I thought you meant a 60 degree hand held graver.
Out of curiosity, how fast will your Atlas turn? It seems like a lot of the wood lathes go up to 3500 RPM or so, but metal lathes are limited to about 2000 rpm. Did you run into any problems with this?I turned more wood on my Atlas 12" lathe than metal.