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Each SW-40 is made in the USA, and is heat treated and nickel plated for long service. Park Tool spoke wrenches are vinyl dipped to indicate the size at a glance.
SW-40 Features
- Sized for spoke nipples with 3.23 mm (0.127") wrench flats
- This size is often found on higher-end bikes
- Typical compatible nipple brands include DT Swiss, Sapim, Wheelsmith, Pillar, and many others — always measure to be sure
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