Park Triple Spoke Wrench SW-7.2 The '2' in the title refers to this being an updated and more ergonomic version of Park's legendary SW-7 spoke wrench whose three different spoke nipple slots made it near-universal. Heat-treated, nickel-plated and precision made spoke wrench. Fit the 3 most popular spoke nipple gauges. 0.127 inch (3.23mm). 0.130 inch (3.30mm). 0.136 inch (3.45mm).