ThePark Tool BBT-69.2 Bottom Bracket Tool is a precision cnc machined aluminum tool for the installation and removal of external bearing bottom bracket cups. Park Tool BBT-69.2 Bottom Bracket Tool Features Featuring updated tooth profile to optimize the fit between the tool and high performance bb parts Anodized and laser engraved for easy identification and featuring a ratchet?/?Torque wrench compatible 3/8 drive 39mm 16-notch Fits shimano® xtr bb93, dura-ace® bb9000 Added depth to fit Shimano steps square drive motor Made in the usa and covered by park tool's legendary limited lifetime warranty