A set of gears with 10, 20 ,30, 40 and 50 teeth of all kinds of purposes on KAP rigs. The 10 teeth is modified to fit a standard servo. The center of the biggest gear is fitted with a M4 thread.
Metric, module1. (This means a 10 teeth gear has an outer diameter of 10 mm; a 40 teeth gear has an outer diameter of 40 mm)