The Detail Thread tool is awkward to work with and not accurate for internal and external threads that match. Would be good to simplify it so that you can specify thread tolerance and generate a threaded pocket (female thread) or object that can be booleaned out of a shape and have a matching male thread.
Simply scaling a threads diameter does not work with acme threads because the are proportionally long. This causes the diameter to be drastically shorter vs the thickness of the thread.
Another option for custom thread profile would be handy where a user can load in a user made profile path. Maybe have it so they can load in 2 profiles as sets (Internal & External) and specify the appropriate tolerance?