The thread gauge is used to grind and align the tool bit.
In my limited experience, I found that a carbide tool deep enough to get under the chrome gets rid of that, then you can use hss. Hss might be fine as long as you get under the chrome layer, I just never tried that.
Thank you, appreciate replies. I have several larger diameter pieces I could really make use of. Will give it a try and see what happens.I chucked the rod in the lathe and removed the chrome where I wanted to cut the rod with the band saw.
I used a carbide insert to reduce the diameter of the rod. Carbide stands up well to the task.
If you put extremely light pressure on the half nut as the dial comes around, it will slip right in every time. If not, just wait for the next time.and missed the correct mark on the thread dial and lost a couple threads on the first fitting.