Park Tool Spoke Wrench SW-0 Through SW-3 Precision-sized spoke wrenches are hardened and nickel plated for long service Vinyl coated indicating the size at a glance Comfortable, vinyl dipped, two-sided spoke wrench is designed to easily access Mavic_ fittings. Fits both Mavic_ 9mm threaded eyelets and 7mm integrated nipples The two-sided SW-14 features 4.3mm and 4.4mm openings to fit Shimano_ Wheel System nipples. These are the spoke nipples located at the hub flange The SW-40 is the same 3.23mm (0.130") size as the SW-0 (black). The SW-42 is the same 3.45mm (0.136") size as the SW-2 (red).