SW18 5.5mm Socket Internal Spoke Nipple Wrench

Description

The SW18 5.5mm Socket Internal Spoke Nipple Wrench from Park Tool USA is a precision bike tools essential for adjusting hidden spoke nipples on aero and deep-section wheels. Designed for wheel builders and home mechanics alike, it reaches internal nipples through the rim bed for accurate spoke tension and truing.

• Fits 5.5mm hex internal spoke nipples used on many deep-section and carbon road rims.
• Equivalent to Park Tool part number SW-18, commonly listed as an internal nipple spoke wrench.
• Useful for select wheel systems that require a wheel and freewheel tools socket internal spoke nipple design instead of a traditional external spoke wrench.
• Also cross-referenced in Park Tool wheel tool charts alongside SW-16, SW-17, and SW-19 for other internal nipple sizes.

This park tool usa socket internal spoke nipple wrench features an ergonomically shaped screwdriver-style handle paired with an extra-long socket shaft for improved access inside modern rims. Park Tool specifies the SW-18 as a 5.5mm hex internal nipple spoke wrench, making it ideal for wheels that use concealed nipples where standard spoke wrenches cannot engage. Built to Park Tool’s professional-quality standards, it offers dependable fit and control to help reduce the risk of rounding delicate alloy nipples. Installation difficulty is low for experienced wheel mechanics and moderate for DIY users working carefully with proper wheel truing technique.

Count on this OEM-quality Park Tool replacement for confident wheel service, smooth adjustment, and easy DIY installation from our warehouse.