Airgineers Micro Drones - Airgineers 701431, This Airgineers Propeller tool is a must have when disassembling your micro drone. The tools design allows for the easy removal of propellers from motor shafts, without the risk of bending the blades of the propellers. For use with the Airgineers range: Design, Build, Fly, Compete! Airgineers Propeller Tool