Park Tool BBT-79.3 12 Tooth 45-47mm External BB Tool (For 3/8″ Ratchet)

Precision CNC machined aluminum tool for the installation and removal of 12-notch external bearing bottom brackets. Anodized for easy identification and featuring a ratchet/torque wrench compatible 3/8″ drive.
Features:

• Fits 12-notch bottom bracket tool fittings with a major diameter of 45-47mm and a minor diameter of 44mm
• 3/8″ drive compatibility
• SRAM BSA Dub, Race Face® Cinch™, Rotor® BSA30, Zipp® Vuma™, Hawk Racing™ BB3086™, and more