The Milwaukee 48-66-1015 1/4" Self-Releasing Collet and Locking Nut Assembly is a precision-engineered accessory designed to keep your bits secure, running true, and easy to remove—even after heavy use. Built with an all-steel construction and a self-releasing collet, it helps eliminate frustrating bit jamming while maintaining consistent performance. The extended 8-segment collet design reduces vibration, giving you smoother operation and better accuracy—because fighting stuck bits is nobody’s idea of productivity.
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