Ideal for enthusiasts, professional technicians, and hobbyists requiring rotor maintenance tools for FPV and commercial Aluminum alloy maintenance tool set ensures safe propeller removal with 5 precisions machined bolts ( 2.9mm to 0.9mm) for multi model compatibility Engineered to minimize rotor shaft wear and maintenance risks, this toolset streamlines propeller while protecting delicate motor components Compact propeller removal tool features lightweight aviation grade aluminum construction and portable design, safely extracting stuck rotors without damaging hubs Perfect for quick propeller replacements during field repairs, workshop maintenance, or outdoor flying with easy pocket sized portability, Manufacturer: Kaeltsyn