The SW-7 is electroless nickel plated for years of service. The precision sized SW-7 fits the three most popular spoke nipple sizes on the market. The three sizes of the SW-7 are marked "0", "1", and "2".uilt bicycles). These are equal in sizing to the SW-0 (black), SW-1 (green) and SW-2 (red) respectively. The "0" is sized for 3.22mm (0.127") nipples and fits Wheelsmith®, Marwi® and DT®, Edco® as well as other brands of nipples. The "1" is 3.3mm, and the "2" is for 3.45mm nipple sizing (common on many Asian built bicycles).
Give your nipples a quick twist with Parks Professional Spoke Wrench. Hardened and chrome plated for years of dependable service, They will true your wheels for many years. Compatible with Wheelsmith, Marwi, DT, Edco and other nipples.