Very good video Mac. You have shown there is hope in returning rusty parts to working order. I use that product around the shop weekly.We use a brass brush on threads and stubborn parts.
Very nice. This is a great video for folks to see! That stuff in the threads is most likely lead. Some folks use a piece of lead shot between the die lock nut and the die body to protect the threads. It should pick out of there pretty easily. 🤛🏻🔫🇺🇸