The Du-Bro 499 Tru-Spin Prop Balancer is a precision tool designed for modelers who demand accuracy. Featuring a specially designed locking cone and centerless-ground hardened shaft, it delivers consistent and true balance for a wide range of applications. The nearly friction-free aluminum wheels ensure smooth rotation, making it ideal for balancing airplane props, drone props, boat props, car wheels, helicopter rotors, and more. Comes with a 5.5-inch shaft and detailed instructions. For wider props, an optional 8-inch shaft is available separately. Perfect for getting the most out of your RC performance.

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