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Deluxe Threadless Nut Setter – TNS-4

The Park Tool TNS-4 is an upgraded, precision tool designed to make star-fangled nut installation fast, accurate, and hassle-free. Featuring a durable steel driver and a built-in alignment guide, the TNS-4 positions the star-fangled nut perfectly straight and at the correct depth every time.

Its improved ergonomic design helps prevent pinched fingers and offers smoother, safer operation, making it ideal for both shop and home mechanics working with threadless headset systems.


Features

  • Ensures perfect alignment and consistent installation depth

  • Compatible with 1" and 1 1/8" threadless headset systems using standard M6 star-fangled nuts

  • Durable steel construction with built-in guide

  • Safer, finger-friendly design

  • Replaceable set screw — Part #822