5mm Quadcopter Propeller Balancing ShaftThe DU BRO Drone Quadcopter prop balancer's aluminum wheels turn virtually friction free for precision accuracy. The Du Bro Tru Spin Prop Balancer will balance drone props of all sizes and weights. Each balancer comes complete with easy to follow assembly and prop balancing instructions. A truly precision instrument built for the modeler who expects the very best. #3396, 3380, 3381, 3383, 3384 Specially designed balancing shaft with left and right
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