Arrma 21T 0.8Mod Safe-D5 Pinion Gear Product Type_Airplanes used to break rock and

used to break rock and improve the flow at new oil and gas fields

Fine profile molded spike and tie plate details on each tie

this new version adds Smart technology making it easy for pilots to see important information at a glance

*Set contains 10 pieces

Arrma 21T 0.8Mod Safe-D5 Pinion Gear Product Type_Airplanes used to break rock andDetails: This tough steel 21T 0. 8 Module Safe D Pinion Gear is the perfect part to carry in your RC tool box. Features: Strong and durable steel for long lasting performance in extreme RC conditions Precision manufactured wide tooth profile for smooth operation 'D' shaped hole to match motor shaft profile so drive and brakes are not lost if the set screw backs out Suits 5mm motor shaft diameter Precision manufactured threaded set screw hole E clip