Park Tool SW-40 Four-Sided Spoke Wrench: 0.127 Inch / 3.23mm Black

Unique four-sided spoke wrench design provides extra strength and support when truing wheels

Design helps prevent slipping and deformation of aluminium nipples under high load

The SW-40 is the same 3.23 mm / 0.130 inch size as the black handled SW-0

The SW-42 is the same 3.45 mm / 0.136 inch size as the red handled SW-2

Made in the USA and covered by Park Tool's legendary limited lifetime warranty