Fits 12-notch bottom bracket tool fittings with a major diameter of 50-53mm and a minor diameter of 48.2mm, including:BBInfinite T47Chris King® ThreadFit T47Chris King® ThreadFit 30Enduro® BBRight TorqtiteHambini T47Rotor® T47 External 30mmRotor® BBRight, BB30, BB386EVO, and PF30 thread-together