High-performance 13 tooth pinion gear, manufactured from special steel for toughness and durability, with precise tolerances to assure unparalleled concentricity. Created on a special gear machine, all pinions feature ultra-precise tooth shaping and ultra-true running for vibration-free operation. Each pinion is marked with the tooth number for easy and quick identification. Features Special hardened steel; CNC cut teeth for perfect teeth shape and concentricity; For 50mm motor shafts; Made in Europe; .