ITEM NAME:Motor Release tool wrench M5 Hex Nut Propeller Cap Nut For Racing Drone Moto Hn.1 M5 Quick Release Wrench Tool. This wrench tool is designed for quick release of Motor hex nuts. Suitable for most FPV racing motor with M5 screws nuts,like 2205, 2207 motor. Made of alloy and durable in use.