Park Tool SW-9 Double Ended Spoke Wrench The Park Tool SW-9 Double Ended Spoke Wrench is ideal for wheel truing when there's limited access to spoke nipples such as small, high spoke count wheels or while using an anti-rotation spoke holder. The SW-9 combines two common spoke nipple sizes, 0. 127"/3. 23mm (SW-0) and 0. 136"/3. 45mm (SW-2). Forged, machined, heat treated, plated and vinyl dipped for years of dependable use. It's the perfect addition to your wheel working work station at the shop or at home in your garage. FEATUREScombines two common spoke nipple sizes 0. 127"/3. 23mm Manufacturer's Part # SW-9 | Park Tool | Sw-9 Double Ended Spoke Wrench Black Sw-0 3. 23Mm & Red Sw-2 3. 45Mm