The Park Tool SW-40 Four-Sided Spoke Wrench features a unique four-sided design providing extra strength and support to prevent slipping and deformation of aluminum nipples. Uses the same world famous design and high quality materials as our three-sided spoke wrenches. Park Tool SW-40 Four-Sided Spoke Wrench Features Sized for 0.127" (3.23mm) nipples Same size as the SW-0 (black) More info
