Park Tool BBT-69.4 Bottom Bracket and Lockring Too BBT-69.4

- A precision CNC-machined aluminum tool for the installation and removal of select threaded bottom brackets with 16-notch tool fittings\n- Fits 16-notch bottom bracket tool fittings with a major diameter of 44-45mm and a minor diameter of 42.7 mm\n- Features a deeper inner socket profile to allow for use on center lock brakes\n- 3/8" drive compatibility\n- Retailers are not permitted to sell on the Amazon.com marketplace unless authorized in writing by Park Tool