Complete 1/4" collet and locking nut assembly for use with Milwaukee routers (series 5615, 5616, 5619, and 5625). For use with 1/4" shank router bits, the assembly includes a premium 1/4" collet with self-release feature that prevents bits from jamming in the assembly. The collet's extra-long, 8-segment design ensures maximum bit to collet surface contact to minimize vibration and runout. The precision ground locking nut features extra wide faces to ensure a firm, reliable nut-to-wrench connection. Includes 1/4" collet and locking nut.