Them includes :
Pinion Gear-1pcs
3*3 Screw Shaft-1pcs
role location:
Pinion
Product major function & usage:Connect utilizing the motor and carry the engine to run
1.Made by harden steel #45, more powerful and durable to reach more smooth performance.
2.Middle opening:2mm,enamel distance:0.5mm,enamel:15T.Suitable for many devices with below specifiaction-