Acetal polymer pinions, suitable for most geared quadcopters, such as the Blade mQX, the Latrax Alias, the WLToys v959/v222.

Acetal polymer, also known as Polyoxymethylene, is sold under many different brand names, such as Delrin. It is a very tough plastic, and used in many wear parts throughout the industry.

Acetal pinions run quieter than brass, show less wear, provide less stress to the spur gear, and are easy to mount/remove by hand.

- bore: 1.0mm
- diameter: 3.8mm
- length: 4.5mm
- weight: 0.034g