PARK TOOL – TNS-1 & TNS-4 – THREADLESS NUT SETTERS

TheTNS-1 is used to install the star-fangled nut found on 1 and 1-1/8 threadless headset systems. Thread the nut onto the TNS, insert into the fork stack, and tap it in with a hammer. Sets the star-fangled nut to 15mm and keeps it straight. Long handle helps prevent pinched fingers.

The TNS-4 makes it quick and easy to install star-fangled nuts used with 1″ and 1-1/8″ threadless headset systems. Using a durable steel driver and built-in guide, the TNS-4 perfectly aligns the star-fangled nut and sets it to the proper depth every time. The unique design virtually eliminates pinched fingers. Replaceable set screw (#822).