Park Tool SW-18 Spoke Wrench

The SW-18 is engineered specifically for internal spoke nipples. These are nipples that are recessed inside the rim, requiring a tool that can reach into the rim bed to make adjustments.

No, this tool features a 5.5mm hex interface. You should verify that your specific wheelset uses 5.5mm internal nipples before purchasing, as internal nipple sizes can vary between manufacturers.

The hex-shaped interface provides a secure, multi-sided grip on the nipple. This design significantly reduces the risk of rounding off the nipple edges, which is a common issue with less precise tools.

While the SW-18 handles the nipple adjustment, you will typically need a spoke tension meter to accurately measure the tension of your spokes during the truing process. Additionally, you may need a way to hold the spoke itself to prevent it from twisting while you turn the nipple.

Yes, it is a great choice for beginners. Its ergonomic design offers excellent control, and the precise fit helps prevent user error, making the delicate process of tensioning spokes much more manageable.