Park Tool BBT-59.3 Bottom Bracket Tool - 16-Notch

Park Tool bottom bracket tools for installation and removal of 16 notch bottom brackets.

• Fits 16-notch threaded bottom bracket tool fittings with a major diameter (outside of notches) of 41–42 mm and a minor diameter (inside of notches) of 39 mm
• Fits Shimano Ultegra BBR60, and Deore XT MT-800