Park Tool SW-16 Internal Nipple Spoke Wrench - 3.23mm Square

Some wheels feature spoke nipples accessible only through holes on the outside of the rim. The SW-16 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.

• Sized for 3.2 mm square-shaped internal nipples
• Shaft length: 825 mm (3.25")
• Shaft outside diameter: 6 mm (0.24")