Park Tool BBT-79.3 Bottom Bracket Tool

A precision CNC-machined aluminum tool for the installation and removal of select threaded bottom brackets with 12-notch tool fittings, including SRAMA(R) BSA DUBA(R), Race FaceA(R) CinchA(R), RotorA(R) BSA30, and others. Manufactured in-house by Park Tool, anodized for easy identification and featuring a ratchet/torque wrench-compatible 3/8" drive. The BBT-79.3 features integrated threads for full compatibility with the Park Tool BBT-RS Bottom Bracket Tool Retaining System (sold separately). The BBT-RS uses an adjustable spring-based tension system to apply consistent, adjustable pressure to the tool, ensuring full engagement with the tool fitting and preventing slippage.BBT-79.3 FEATURES Fits 12-notch threaded bottom bracket tool fittings with a major diameter (outside of notches) of 45-47 mm and a minor diameter (inside of notches) of 44 mm, including: - SRAMA(R) BSA DUBA(R) - Race FaceA(R) CinchA(R) - RotorA(R) BSA30 - ZippA(R) Vuma(TM) - Hawk Racing(TM) BB3086(TM) - and more