A precision CNC machined aluminum tool for installing and removing selected threaded bottom brackets with 16 notch tool fittings, including Shimano XTR BB93, Dura-Ace BB9000 and Token bottom brackets. Manufactured in-house by Park Tool, anodized for easy identification and equipped with a 3/8" ratchet/torque wrench compatible drive. The BBT-49.3 features integrated threads for full compatibility with the BBT-RS bottom bracket tool Park Tool Clamping System (Sold Separately) The BBT-RS uses an adjustable spring tension system to apply constant, adjustable pressure to the tool, ensuring full engagement with the tool fitting and preventing slippage.

- Fits 16-notch threaded bottom bracket tool fittings with a major diameter (outside of the notches) of 39-40mm and a minor diameter (inside of the notches) of 37.6mm, including: Shimano XTR BB93 Shimano Dura -Ace BB9000 Tokens
- Also fits chainring lock rings on square-pivot Shimano STEPS e-bike systems including: E6000 E6002 E6050
- 3/8" fitting