Park Tool 16-Notch 41 mm Bottom Bracket Tool - BBT-59.3

A precision CNC-machined aluminum tool for the installation and removal of select threaded bottom brackets with 16-notch tool fittings, including Shimano Ultegra BBR60 and Deore XT MT-800 bottom brackets. Manufactured in-house by Park Tool, anodized for easy identification and featuring a ratchet/torque wrench-compatible 3/8" drive. The BBT-59.3 features integrated threads for full compatibility with the Park Tool BBT-RS Bottom Bracket Tool Retaining System (sold separately, item #890183).

Features:

• Fits 16-notch threaded bottom bracket tool fittings with a major diameter (outside of notches) of 41–42 mm and a minor diameter (inside of notches) of 39 mm
• 3/8" drive fitting
• Integrated threads for full compatibility with the Park Tool BBT-RS (sold separately)

Compatibility:

• Shimano Ultegra BBR60
• Shimano Deore XT MT-800