Feature(may vary by option.)

●Description: 3MM D hole gear, can be used with D shaft motor or shaft
●Number of teeth: 12
●Hole: 3MM D type
●Outer diameter: about 6mm
●Modulus: 0.5

[3mm D 12 Teeth]

Description

12T 3MM-D
Small module gear is used for toy accessories, for mini cars, for remote control aircraft etc.
How to calculate the calculation of gear? (for reference only)
Gear module M = outer diameter ÷(number of teeth +2)
Outside diameter = Gear module ×(number of teeth +2)