Park Tool SW-17 Hex Internal Spoke Nipple Wrench: 5.0mm

Sized for 5.0 mm hex-shaped internal nipples Shaft length: 825 mm (3.25") Shaft outside diameter: 7.5 mm (0.3") Some wheels feature spoke nipples accessible only through holes on the outside of the rim. The SW-17 is specifically designed to access these hard-to-reach internal nipples. Features a comfortable dual-density handle and an extra long shaft for deep aero rim cavities.