小齿轮2.0毫米/ 0.5M 12T（1个）
HobbyKing leaves a lot to be desired. They accept your orders having emailed you that the items are in stock, but once you have paid you suddenly discover that they are in fact out of stock & remain so indefinitely without giving you the chance to cancel your order.
I'm not sure I'll continue to deal with them. I currently have two unpaid orders as I'm not prepared to pay well over a hundred dollars for part orders that sit in limbo until the back ordered items arrive.
A most unsatisfactory system.
ruffmy pinion project on my walkera uflys, hopefully works fit in my motor shaft with locktite......great job... fit well on 2mm. shaft. must have in ur tool box