Motor Toy Car Transmission Spindle Gear Mini Metal Copper Gear 7 - 16 Teeth

Modulus: 0.5 mode, 0.4 mode, 0.3 mode (81A, 91A are 0.4 mode, 71A, 71B are 0.3 mode, others are 0.5 mode). Number of teeth: 7-16 teeth. Material：Copper.

eBay