Park Tool BBT-59.3 Bottom Bracket Tool
Park Tool BBT-59.3 Bottom Bracket Tool, 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). 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.