Park Tool Bbt-49.3 Bottom Bracket Tool 16-notch 39mm

A precision CNC-machined aluminium tool for the installation and removal of select threaded bottom brackets with 16-notch tool fittings including Shimano® XTR® BB93 Dura-Ace® BB9000 and Token® bottom brackets. Manufactured in-house by Park Tool anodized for easy identification and featuring a ratchet/torque wrench-compatible 3/8' drive. The BBT-49.3 features integrated threads for full compatibility with the Park Tool BBT-RS Bottom Bracket Tool Retaining System. (sold separately) Features: Fits 16-notch threaded bottom bracket tool fittings with a major diameter (outside of notches) of 39-40mm and a minor diameter (inside of notches) of 37.6mm inlcuding Shimano BB93 Dura-ace BB9000 and Token Also fits chainring lockrings on Shimano® STEPS square spindle e-bike systems including E6000 E6002 and E6050