Use this tool to remove your propeller nuts really fast and easy! Update: -uploaded m6 veion! -uploaded veio with m3, for your frame nuts, now you have the m3 on the top, and the m5/m6 on the down side! -uploaded m5 m3 veion with a little dirt remover for your moto(and frame)! -added a keyring hole! Please donate here for my work: https:www.paypal.meimonke Or support me by buying these nice Kingkong5040 props: http:www.banggood.com/KINGKONG-5040-Propelle-CW-CCW-10-Pai-For-QAV250-RC-Multiroto-p-1000415.html?p=LH15061497646201504Y (Use coupon code "8rchobby" to get 8% discount!) If you are gonna sell it, please donate a little bit :) Please post your makes!