Park Tool Spoke Wrench — 3.30 mm

With their simple design and professional quality, they're still the favorite of bike mechanics around the world. Each Park Tool SW-1 is made in the USA, and is heat treated and nickel plated for long service. Park Tool spoke wrenches are vinyl dipped to indicate the size at a glance.

SW-1 Features

• Sized for spoke nipples with 3.30 mm (0.130") wrench flats
• This size is typically found on older American-made bicycles, including many vintage Schwinn models and wheels built with Union or Torrington spokes. It is not as common on modern bicycles — always measure to be sure.