Park Tool Park Tool Three Way centering key PT-SW-7-2

Suitable for Industry Nine System Aluminum spokes and Sapim Double Square Nipples

Universal centering wrench SW-7.2 for classic nipples. Contains the 3 most commonly used sizes (3.23 - 3.3 - 3.45 mm).
The wrench is ideal for home workshops or on the road to solve unexpected problems with an out-of-center wheel.

Recommendations for spoke/wheel service and manufacturing:

We always recommend lubricating the nipples and all washers under the nipples with grease before threading and centering, as this reduces friction and drag caused by high spoke tension. This makes final centering easier, helps eliminate resonance and noise, and reduces oxidation of aluminum materials.