The Park Tool SW-16.3 Internal Nipple Spoke Wrench — 3/16" Hex, click to enlarge
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Item # SW-16.3

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Internal Nipple Spoke Wrench — 3/16" Hex

Some wheels feature spoke nipples accessible only through holes on the outside of the rim. The SW-16.3 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.

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SW-16.3 Features

  • Sized for 3/16" (4.8 mm) hex-shaped internal nipples
  • Shaft length: 825 mm (3.25")
  • Shaft outside diameter: 7.1 mm (0.28")