Mini lathe/Gingery lathe metric change gears

Gingery lathe has 3/8-16 threaded rod as leadscrew, which matches the 16tpi leadscrew on mini lathes, so using these tables, you can cut either metric or imperial threads on the gingery lathe and mini lathes with 16tpi leadscrews.

http://www.arceurotrade.co.uk/reviews/MEW204-P31_P36-Thread-Cutting.pdf