DT Swiss T20 Squorx Spoke Wrench

DT Swiss Squorx nipples solved one of the perennial frustrations of wheelbuilding: rounded nipples. The Squorx system uses a double-sided nipple, with a male Torx (T20) on the rim-facing end and a standard square drive on the hub-facing end. Either side can drive the nipple, depending on which side of the rim the builder works from.

This wrench is the Torx-side driver. It engages the T20 male Torx end of the Squorx nipple, and per Unior's published guidance for this wrench, the Torx end of the nipple needs to be on the hub side of the rim during the build. The Torx geometry distributes the working torque across six contact lobes rather than four flats; the contact area is larger, the engagement is positive, and the nipple stays drivable through repeated truing passes.

If you build (or have built) your wheels with the Squorx drive on the inside of the rim instead, with the Torx end facing the rim, then this isn't the wrench you need; the companion square-drive variant in the same product family is. The two configurations correspond to whether you'd rather thread spokes from the inside or the outside of the rim during assembly.

Compatibility

• Nipples: DT Swiss Squorx, T20 male Torx on the rim-facing end.
• Drive side: rim end (T20). The hub-end square drive uses a different tool.
• Wheelsets: DT Swiss wheels, third-party wheels built with DT Swiss Squorx nipples.

Specs

• Engagement: T20 male Torx.
• Designed specifically for the DT Swiss Squorx nipple system.
• Required orientation: Torx end of the nipple on the hub side of the rim.

Built in Zreče, Slovenia

Unior has been forging hand tools in Zreče since 1919, and is the official technical partner of multiple World Tour and downhill teams. DT Swiss is a long-running partner in the wheelbuilding world, and their Squorx system is one of the smarter engineering decisions in modern wheel manufacturing. A workshop equipped to service DT Swiss wheels needs the matching driver; the 1630/4DTPR is that driver.

Pro tip from our mechanics

Squorx nipples are forgiving in a way standard aluminum nipples aren't; the Torx engagement is harder to round, and the double-sided drive lets you switch sides if one end gets damaged. But that forgiveness can mask poor wrench technique. Use the same one-quarter-turn discipline as you would on a standard nipple; the strength of the Squorx system isn't an excuse to over-torque the build. The wheel-truing workflow is in How to true a bike wheel →