SW-7.2 FEATURES
Features the following sizes — measure to be sure you are using the correct wrench for your wheel.

Size 0:

Sized for spoke nipples with 3.23 mm (0.127″) wrench flats
Equivalent to Park Tool SW-0
Often found on higher-end bikes
Typical compatible nipple brands include DT Swiss, Sapim, Wheelsmith, Pillar, and many others
Size 1:

Sized for spoke nipples with 3.30 mm (0.130″) wrench flats
Equivalent to Park Tool SW-1
Typically found on older American-made bicycles, including many vintage Schwinn models and wheels built with Union or Torrington spokes — not as common on modern bicycles
Size 2:

Sized for spoke nipples with 3.45 mm (0.136″) wrench flats
Equivalent to Park Tool SW-2
Often found on most department store bikes, as well as many other low-to-midrange bikes