Park Tool Spoke Wrench - SW-3
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Park Tool Spoke Key / Wrench - 0.156"" / 3.96mm - Blue - SW-3Free delivery in 1–3 days£14.95Visit shop →
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Product Information
Full details
The Park Tool SW-3 Spoke Wrench is designed for professional mechanics and dedicated home cyclists who require a high-precision tool for adjusting 3.96 mm (0.156-inch) spoke nipples. It offers exceptional durability through its hardened and nickel-plated construction, ensuring it can withstand years of frequent use without wearing out. While this wrench is a benchmark for quality, users should note that it is size-specific, meaning it will not fit standard spoke nipples of other dimensions, requiring you to verify your wheel specifications before purchase.
All features
| Model Part Number | QKSW3C |
|---|---|
| Brand | Park Tool |
Extended Product Information
FAQs
How do I know if the SW-3 is the right size for my bike?
The SW-3 is specifically for 3.96 mm (0.156-inch) nipples. You can measure your nipple flats with a digital caliper to confirm compatibility.
Can I use this on alloy spoke nipples?
Yes, but use extra caution. Alloy nipples are softer than brass, so ensure the wrench is fully seated to avoid stripping the soft metal.
Why is the handle blue?
Park Tool uses a color-coding system to denote the size of the spoke wrench. Blue specifically identifies this tool as the SW-3 for 3.96 mm nipples.
Does this wrench fit square nipples?
Yes, it is designed to fit the standard square flats of a 3.96 mm spoke nipple.
Is the handle replaceable if it wears out?
The vinyl coating is bonded to the handle for comfort and longevity. It is not designed to be replaced, though the tool steel beneath will remain functional for years.
Troubleshooting
Wrench feels loose on the spoke nipple
Verify that your nipple is actually 3.96 mm. If the nipple is smaller, the SW-3 is the wrong size for your wheel.
Difficulty turning the nipple
Ensure the nipple is not seized due to corrosion. Use a penetrating oil if the nipple will not turn, and verify that you are turning in the correct direction (counter-clockwise to tighten, clockwise to loosen).
Pros and Cons
Pros
- Extremely durable construction resists wear over time
- Color-coded handle makes size identification quick and easy
- Precision fit reduces the risk of rounding off spoke nipples
- Provides excellent leverage for smooth, controlled adjustments
Cons
- Specific to one size only, not suitable for all wheel types
- Vinyl coating may eventually wear down with heavy professional use
- Does not include integrated indicators for spoke tension
Setup, Compatibility & Care
To use the SW-3, simply slide the slotted end over the spoke nipple. Ensure the wrench is fully seated against the nipple flats before applying torque to avoid damaging the components.
Compatibility: This tool is strictly for 105 gauge (3.96 mm) nipples. Always verify your nipple size using a caliper if you are unsure of your wheel's specifications.
Care: While the tool is nickel-plated, it is best practice to keep it clean of road grit and moisture. Wipe the wrench down after use to maintain the grip of the vinyl handle and prevent oxidation on the tool head.