Park Tool SW-18 Internal Nipple Hex Spoke Wrench (5.5mm)
Park Tool SW-18 Internal Nipple Hex Spoke Wrench (5.5mm), Designed to fit internal spoke nipples found on many deep section aero rims. Features: Works with rims up to 50mm deep Fits internal nipples on many deep section aero rims Extra long (3.25"/ 8.5cm) spoke wrench socket Ergonomically-designed screwdriver handle Specs: keyword search SW-18 Tip Size 5.5mm