PARK TOOL TNS-1 Threadless Nut Setter Tool

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 - Fits star-fangled nuts with an M6 threaded nut. Not compatible with M10 threaded star-fangled nuts.