Park Tool TNS-4 Deluxe Threadless Nut Setter Giant-Imported less than 2 microns in

less than 2 microns in diameter

It's compatible with SRAM Wide DUB inner bearings

mileage and low rolling resistance

2-Piston System: Specifically engineered for 2-piston calipers

Model Name: Scalpel HT LAB71

Park Tool TNS-4 Deluxe Threadless Nut Setter Giant-Imported less than 2 microns inThe 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. Specifications Compatible with 1" and 1 1 8" headset systems that use a standard M6 threaded star fangled nut Replaceable set screw part #822