Park Tool TNS-1 Starnut Setter

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