The Park Tool SW-6 is the spoke wrench dedicated to nipples with 3.70 mm (0.146 in) wrench flats. When a wheel uses nipples of this size, the Park Tool SW-6 spoke wrench for 3.70mm nipples lets you adjust tension and true the rim with the exact tool instead of making do with a wrench of a nearby size.
This size is also found on some hub-drive e-bikes, where having the correct wrench makes all the difference. The SW-6 follows the Park Tool spoke wrench design that has been in production for over fifty years: a heat-treated, nickel-plated body built to last, a vinyl dip that shows the size at a glance, and manufacturing in the USA.
How to use the Park Tool SW-6 spoke wrench
- Measure the nipple flats before you start: the SW-6 is sized for 3.70 mm only.
- Essential on hub-drive e-bikes that use 3.70 mm nipples.
- Useful for lateral and radial truing, tension touch-ups and routine wheel checks.
- The coating colour lets you spot the size instantly among the other spoke wrenches on the bench.
Why choose Park Tool SW-6
- Grip sized to 3.70 mm nipples, so you work without rounding off their corners.
- Heat treatment and nickel plating for a tool that stands up to daily workshop use.
- A design proven for over half a century in workshops around the world.
- Made in the USA with Park Tool professional quality.
If hub-drive e-bikes come through your workshop, the Park Tool SW-6 spoke wrench for 3.70 mm nipples is the size to keep within reach.
TECHNICAL SPECIFICATIONS
General
- Code: SW-6
- Type: spoke wrench
- Made in: USA
Materials
- Finish: heat treated and nickel plated
- Coating: vinyl dip to identify the size
Compatibility
- Nipples: 3.70 mm (0.146 in) wrench flats
- Typical use: some hub-drive e-bikes (always check the size)
The Park Tool SW-6 is the spoke wrench dedicated to nipples with 3.70 mm (0.146 in) wrench flats. When a wheel uses nipples of this size, the Park Tool SW-6 spoke wrench for 3.70mm nipples lets you adjust tension and true the rim with the exact tool instead of making do with a wrench of a nearby size.
This size is also found on some hub-drive e-bikes, where having the correct wrench makes all the difference. The SW-6 follows the Park Tool spoke wrench design that has been in production for over fifty years: a heat-treated, nickel-plated body built to last, a vinyl dip that shows the size at a glance, and manufacturing in the USA.
How to use the Park Tool SW-6 spoke wrench
- Measure the nipple flats before you start: the SW-6 is sized for 3.70 mm only.
- Essential on hub-drive e-bikes that use 3.70 mm nipples.
- Useful for lateral and radial truing, tension touch-ups and routine wheel checks.
- The coating colour lets you spot the size instantly among the other spoke wrenches on the bench.
Why choose Park Tool SW-6
- Grip sized to 3.70 mm nipples, so you work without rounding off their corners.
- Heat treatment and nickel plating for a tool that stands up to daily workshop use.
- A design proven for over half a century in workshops around the world.
- Made in the USA with Park Tool professional quality.
If hub-drive e-bikes come through your workshop, the Park Tool SW-6 spoke wrench for 3.70 mm nipples is the size to keep within reach.
TECHNICAL SPECIFICATIONS
General
- Code: SW-6
- Type: spoke wrench
- Made in: USA
Materials
- Finish: heat treated and nickel plated
- Coating: vinyl dip to identify the size
Compatibility
- Nipples: 3.70 mm (0.146 in) wrench flats
- Typical use: some hub-drive e-bikes (always check the size)
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