Designed to fit popular quadcopter, multirotor and drone rotor blades
Designed for use with the Dubro DUB499 Prop Balancer. Accurately balances quadcopter props and allows you to eliminate vibration from unbalanced props. Works with all 6mm threaded props like DJI Phantom and more. Perfectly "true" shaft with clockwise threaded end and a counter-clockwise threaded end.
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