Metal 48P Spur Gear 16T Made from High-Quality 7075-T6 Aircraft Grade Aluminum. As a result, these pinions are as strong as most steels, but with half the weight!. Hardcoated for increased hardness and long life. Laser-etched with the gear size for easy identification. Precision machined and lightened for an extremely true gear that runs quietly and efficiently.

Features:

1. Material:7075 Aluminum
2. Shaft Diameter: 3.175mm
3. Outer Diameter: 10.5mm
4. Height: 9mm