The socket can increase contact area between wrench and B.B. shell, especially for lightweight B.B. Disassemble and install Shimano® Hollowtech II, Truvativ® GXP, FSA® MegaExo, Campagnolo® Ultra-Torque, TOKEN® and many other external bearing crank set bottom brackets. Fits Shimano® 16 notch rotor disc lockrings.
Bottom bracket wrench includes a crank installation tool for Shimano & Sugino* Cranks
