OSG's NC assist program for thread mills is available on this page.
The file is in EXCEL format and applies to FANUC NC.
To activate macro, please go to Tools->Macro->Security...->'Security Level' and select the radio button labeled "Medium" or "High" and restart your office application.
* As this program is made by metric, it may not work normally with non-metric NC unit.
** OSG accepts no responsibility for losses arising from use of the program.