A precision CNC-machined aluminum tool for the installation and removal of select threaded bottom brackets with 16-notch tool fittings, including Enduro® T47 and PF30 bottom brackets. Manufactured in-house by Park Tool, anodized for easy identification and featuring a ratchet/torque wrench-compatible 3/8" drive.

Fits 16-notch threaded bottom bracket tool fittings with a major diameter (outside of notches) of 52–54 mm and a minor diameter (inside of notches) of 48.8 mm, including:

• C-Bear® T45 24mm, 30mm, and DUB®
• C-Bear® T47-BB86
• CeramicSpeed T47/86
• Enduro® BB30/30a TorqTite (30mm and DUB® spindles)
• Enduro® T47 (30mm and DUB® spindles)
• Kogel T47
  
• SRAM® T47 DUB®
• White Industries™ PF30 Thread-Together
• White Industries™ T47

Not designed for use with impact drivers or other power tools.