This is the Park Tool SW-1 3.3mm Spoke Wrench. Professional quality, precision-sized spoke wrenches are hardened and nickel plated for long service. Park Tool Spoke Wrenches are vinyl coated in one of five colors indicating the size at a glance.
The SW-1 is sized for .130” (3.30mm) nipples.
This product was added to our catalog on March 7, 2018