Park Tool Spoke Wrench - SW-1

The Park Tool Spoke Wrench SW-1 is a workshop staple built for a specific job: fitting 3.30mm wrench flat nipples found on many older American-made bicycles — Schwinn, Union, and Torrington builds in particular. If you're working on vintage or classic bikes, having the right size spoke wrench is non-negotiable for accurate tensioning and true wheel building.

Heat treated and nickel plated, the SW-1 is made to last through repeated use without wearing out the jaw. The compact, single-piece design keeps things simple and gives you solid feedback when tensioning spokes. This is the green-handled version — Park Tool uses color coding across the SW range to make size identification fast at a glance.