Park Tool - SW-40 & 42 - Four Sided Spoke Wrenches S3-Size-3/16" SRAM XX / XO and

SRAM XX / XO and Avid DB and Elixir series

Maximum anti rust protection

Made in Barcelona with a cool semi-matte finish

Rear quick release Cr-Mo axle

The design and geometry of the rear derailleur are exactly the same

Park Tool - SW-40 & 42 - Four Sided Spoke Wrenches S3-Size-3/16" SRAM XX / XO andPARK TOOL SW 40 & 42 FOUR SIDED SPOKE WRENCHES K SW 40: Unique four sided design provides extra strength and support and helps prevent slipping and deformation of aluminium nipples. Uses the same world famous design and high quality materials as our three sided spoke wrenches. The SW 40 is the same 3. 23mm (0. 127") size as the SW 0 (black). K SW 42: Unique four sided design provides extra strength and support and helps prevent slipping and