Gear Collection 2

Spur Gear Collection 2
Module - 10 mm
Pressure Angle - 20 deg
Teeth - 51 to 100 (Total 50 gears)
Gear face width - 30 mm
Shaft hub size - 20 mm default.

If gear stl file name is Spur_Gear_10M_10T.stl then the gear has 10 teeth with module 10

Spur Gear Collection 1 - https://www.thingiverse.com/thing:2817696
(Collection 1 contains teeth from 10 to 50)

Module = (Pitch dia /Number of teeth)
If you want different gears with module and teeth tell it in the comment section