High-strength split one-piece machined 2-gear 14/18T pinion gear module from tough 7075 T6 aluminum and specifically difficult coated for superior energy, light-weight, and high durability. Created on a particular gear machine, all pinions function ultra-precise tooth shaping and ultra-true running for vibration-free procedure. Fine interior threading enables simple installation. Each pinion is okay etched with the enamel number for fast & simple identification.