Park Tool Shimano BBT-49.3 BB-Cup Tool

- Heavy duty shop quality bottom bracket tool
- For use with 16-notch external bearing bottom brackets with a major diameter of 39-40 mm and a minor diameter of 37.6 mm
- Features integrated threads for full compatibility with the Park Tool BBT-RS Bottom Bracket Tool Retaining System
- Compatible with Shimano XTR BB93 and Dura Ace BB9000
- Updated with added depth to fit Shimano STEPS square drive motor
- For use with a 3/8" ratchet/torque wrench