Park Tool Double-Ended Spoke Wrench — Shimano

Our double-ended spoke wrenches are a comfortable and functional option for truing bicycle wheels with specialty spoke nipples. The shape of the SW-14.5 is ideal for truing wheels while using a spoke holder to prevent rotation of bladed aero spokes. Each SW-14.5 is made in the USA, and is precision machined, nickel plated and vinyl dipped for long service.
The SW-14.5 is designed to fit select Shimano® wheels including models in the Dura-Ace®, Ultegra®, XTR®, and Deore® lines:

4.4 mm square nipples (Shimano® part # Y-012 Z4200) — found at the hub
3.75 mm square nipples (Shimano® part # Y-4SY N1000) — found at the rim