Manufactured in-house by Park Tool, anodized for easy identification and featuring a ratchet/torque wrench-compatible 3/8" drive.
Fits 12-notch threaded bottom bracket tool fittings with a major diameter (outside of notches) of 45–47 mm and a minor diameter (inside of notches) of 44 mm, including:
SRAM® BSA DUB®
Race Face® Cinch®
Rotor® BSA30
Zipp® Vuma™
Hawk Racing™ BB3086™
and more
Note: The BBT-79 has been discontinued and replaced by the BBT-79.3.