High-strength split one-piece machined 2-gear 14/18T pinion gear module from tough 7075 T6 aluminum and especially hard coated for superior energy, light-weight, and high durability. Developed on a particular gear device, all pinions work ultra-precise enamel shaping and ultra-true running for vibration-free operation. Fine interior threading enables effortless installation. Each pinion is okay etched utilising the enamel quantity for quick & easy recognition.