Park Tool BBT-47 12-Notch 50mm Bottom Bracket Tool / Chris King/Rotor

A precision CNC-machined aluminum tool for the installation and removal of select threaded bottom brackets with 12-notch tool fittings, including Chris King® ThreadFit™ T47 and ThreadFit™ 30 bottom brackets. Manufactured in-house by Park Tool, anodized for easy identification and featuring a ratchet/torque wrench-compatible 3/8" drive.

Fits 12-notch threaded bottom bracket tool fittings with a major diameter (outside of notches) of 50–53 mm and a minor diameter (inside of notches) of 48.2 mm, including:

- BBInfinite® T47
- Chris King® ThreadFit™ T47
- Chris King® ThreadFit™ 30
- Hambini T47
- Rotor® T47 External 30 mm
- Rotor® BBright®, BB30, BB386EVO, and PF30 thread-together