A high quality Bottom Bracket Tool from Park Tool. A precision CNC-machined aluminium tool for the installation and removal of select threaded bottom brackets with 16-notch tool fittings, including Enduro T47 & PF30 bottom brackets.Manufactured in-house by Park Tool, anodized for easy identification, and featuring a ratchet/torque wrench-compatible 3/8" driveFits 16-notch bottom bracket tool fittings with a major diameter of 52-54mm and a minor diameter of 48.8mm, including:CeramicSpeed T47/86Enduro T47 (30mm and DUB spindles)Enduro BB30/30a TorqTite (30mm and DUB spindles)Kogel T47SRAM T47 DUBWhite Industries T47White Industries PF30 Thread-Together