High-strength split one-piece machined 2-gear 14/18T pinion gear module from tough 7075 T6 aluminum and specially hard coated for superior energy, light-weight, and high durability. Developed on a particular gear unit, all pinions work ultra-precise enamel shaping and ultra-true operating for vibration-free procedure. Fine inside threading allows effortless installation. Each pinion is okay etched utilising the enamel volume for fast & simple recognition.