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Leisure Lakes Bikes£17.99Visit shop Park Tool SW-15 3 Way Internal Nipple Wrench
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The Park Tool SW-15C is designed for professional mechanics and dedicated home enthusiasts who need to adjust internal spoke nipples on deep section aero rims. Its primary benefit is the specialized Y-shaped reach that allows for precision adjustments in tight, restricted rim channels where standard tools fail. One caveat is that users must verify the specific size of their nipple interfaces before use, as this tool is dedicated to specific square and hex dimensions common in modern aero wheels.
| Model Part Number | QKSW15C |
|---|---|
| Brand | Park Tool |
No, the SW-15C is designed specifically for internal nipples hidden within the rim bed.
The tool is made from high-quality industrial tool steel that is through-hardened and tempered for long-term durability.
It is compatible with many major brands like Mavic, HED, and Campagnolo, but always verify your nipple size before attempting to adjust.
Each socket is 3.25 inches (8.5 cm) long to provide ample reach for deep-section rims.
The tool features a 3.2mm square drive, a 5mm hex socket, and a 5.5mm hex socket.
Ensure the rim access hole is large enough for the shaft diameter (6mm for square, 7.5mm or 8mm for hex) and clear of any rim tape obstructions.
Clean the internal nipple socket of the rim with compressed air to ensure no debris is blocking the interface.
Before starting your wheel service, confirm that your specific nipple interface corresponds to the 3.2mm square, 5mm hex, or 5.5mm hex sockets provided by the tool. This wrench is specifically for internal nipples; it will not work on standard external nipples. Compatibility includes, but is not limited to, wheels from FSA, Blackwell, Planet-X, HED, Rolf, Bontrager, Campagnolo, and Mavic. To maintain the tool, keep the sockets clean of debris or sealant residue, and store in a dry location to prevent surface oxidation of the steel. Periodically inspect the socket edges for any burrs that could damage your spoke nipples.
