Park Tool Shimano BBT-49.3 Bottom Bracket Tool BBT-49.3

- Heavy duty shop quality bottom bracket tool\n- For use with 16-notch external bearing bottom brackets \n- Features integrated threads for full compatibility with the Park Tool BBT-RS Bottom Bracket Tool Retaining System\n- Updated with added depth to fit Shimano STEPS square drive motor\n- For use with a 3/8" ratchet/torque wrench \n- Retailers are not permitted to sell on the Amazon.com marketplace unless authorized in writing by Park Tool