Park Tool SW-42 4-Sided Spoke Wrench - 3.45mm | Red
Tools
Park Tool SW-42 4-Sided Spoke Wrench - 3.45mm · Red
Park Tool SW-42 4-Sided Spoke Wrench - 3.45mm | Red
The Park Tool SW-42 4-Sided Spoke Wrench is a 3.45mm nipple wrench built around a four-sided engagement design that provides more contact area and better grip than traditional two-notch wrenches. Read the overview
At a glance
- Nipple size
- 3.45mm
- Engagement
- 4-sided socket design
- Color code
- Red
- Body material
- Hardened steel
2 in stock
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Overview
What makes the Park Tool SW-42 a shop-friendly spoke wrench?
The Park Tool SW-42 4-Sided Spoke Wrench is a 3.45mm nipple wrench built around a four-sided engagement design that provides more contact area and better grip than traditional two-notch wrenches. Color-coded red for fast identification, the hardened steel body sits squarely on the nipple flats, reducing the slippage that rounds corners when applying tension during truing or wheel builds.
The four-sided socket interface means you can engage the nipple from more positions as you work around the wheel, speeding up the process and reducing hand fatigue. For shops doing regular wheel service or riders who true their own wheels at home, the SW-42 sets a higher standard for fit and function in a simple but critical tool.
All the specs
MPN SW-42
- Nipple size
- 3.45mm
- Engagement
- 4-sided socket design
- Color code
- Red
- Body material
- Hardened steel
FAQ
Good questions
Get to know Park Tool
There's more to Park Tool than this one product. Our Park Tool page has the full Park Tool lineup we carry and more about the brand.
Visit the Park Tool page →Why choose a 4-sided spoke wrench over a standard 2-notch design?
The 4-sided design grips more of the nipple flat surface, reducing the chance of rounding corners under tension. This is especially important when working with alloy nipples or when applying higher spoke tensions.
Does the SW-42 fit nipples other than 3.45mm?
No. The SW-42 is sized specifically for 3.45mm nipples. Using it on a different size risks rounding the nipple and making adjustment impossible.
What does the red color code indicate on Park Tool spoke wrenches?
Red indicates 3.45mm nipple compatibility across the Park Tool spoke wrench lineup, making it easy to grab the right size without guessing.
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