Hobbywing 540-size rotor replacement tool

Coming from Hobbywing is a rotor replacement tool for 540-class motors. The machined alloy tube slides between the rotor and stator and helps to easily extract and replace the rotor for maintenance, setup or repair purposes, and it is usable with rotors of up to 13mm diameter. The tube comes black anodised, with silver edge details and an etched Hobbywing logo.

Source: Hobbywing [hobbywing.com]