Product Fitment: https://www.parktool.com/product/bottom-bracket-tool-bbt-29
Parktool Bottom Bracket Tool – 16-Notch
The BBT-29 is a double-ended bottom bracket wrench designed to fit 16-notch bearing cups with an outside diameter of 39mm (e.g. Shimano® Dura-Ace® 9000 series and XTR® 980 series) as well as 16-notch bearing cups with an outside diameter of 48.5mm (e.g. FSA® MegaEvo®).