Feature(may vary by option.)

●Number of teeth: 8; Module: 0.4 module
●Inner hole: 1mm tight fit / 1.5mm tight fit
●Maximum outer diameter: 4 mm
●Material: Brass
●Suitable for remote control aircraft, various models etc.

[0.98 1mm 8 Teeth]

Description

0.4M 8T
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)