½" Dr. socket compatible with Shimano® Hollowtech II™ or other 16-notch Ø44 mm external bearing bottom bracket cups, and 16-notch rotor disc lockrings.
Also fits Shimano® BB Tool Adaptors TL-FC24 & TL-FC25.


Hardened steel


55 x 35 mm

Other Products In The Range
  • Check with bottom bracket manufacturer for specific torque value settings.
  • All tools should be stored in a dry environment.