Park Tool SW-40 Spoke Wrench Description: This is the Park Tool SW-40 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. Features: Fits DT and Wheelsmith .127/3.23mm spoke nipples Unique four-sided design provides additional strength to prevent slipping Vinyl coated in one of 5 colors to help determine sizing at a glance Professional-quality made with nickel plating for longevity