BBT-35-12 FEATURES Fits 12-notch threaded bottom bracket tool fittings with a major diameter (outside of notches) of 48–50 mm and a minor diameter (inside of notches) of 46.3 mm, including Praxis Works® M30 3/8" drive fitting BBT-47-12 FEATURES Fits 12-notch threaded bottom bracket tool fittings with a major diameter (outside of notches) of 50–53 mm and a minor diameter (inside of notches) of 48.2 mm, including: BBInfinite® T47 Chris King® ThreadFit™ T47 Chris King® ThreadFit™ 30 Hambini T47 Rotor® T47 External 30 mm Rotor® BBright®, BB30, BB386EVO, and PF30 thread-together BBT-79.3 FEATURES 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