Park Tool TNS-1 Threadless Nut Setter

The TNS-1 is used to install star-fangled nuts found on threadless headsets. Thread the nut onto the TNS-1, insert into the steering column, and drive it in with a hammer. Sets the star-fangled nut to 15 mm and keeps it straight. Long handle helps prevent pinched fingers.

Specifications
Compatible with 1" and 1-1/8" headset systems using a standard M6 threaded star-fangled nut
Replaceable set screw — part #822

Mfr Claimed Weight
TBC