Park Tool BBT-47-12 Bottom Bracket Tool — 12-Notch

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 & 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 bottom bracket tool fittings with a major diameter of 50–53 mm and a minor diameter of 48.2 mm, including:
- BBInfinite T47
- Chris King ThreadFit T47
- Chris King ThreadFit 30
- Enduro BBRight Torqtite
- Hambini T47
- Rotor T47 External 30mm
- Rotor BBright, BB30, BB386EVO, and PF30 thread-together