We discontinued our version of these. Tilta now offers them here:

https://tilta.com/shop/nucleus-m-mod-motor-gears/

This simple conversion gear tht allows you to control broadcast lenses with 0.4M gears using Tilta's Nucleus - M system. Use a size 6 Torx key to swap out the screws and bearing on the 0.8M gear, drop it in, and you're ready to go. It will NOT void the warranty on the Nucleus-M motor.