• Material: Precision CNC machined aluminum, anodized and laser engraved for easy identification, featuring ratchet/torque wrench compatible 3/8" drive
• Notch: Used to install and remove the bottom bracket of the 16-notch threaded outer bearing with an outer diameter of 44mm
• Compatible :Compatible with Shimano SM-BB51, SM-BB52, BB80, BB5700, XT BB70 and previous external bearing threaded cups
• Suitable: Also compatible with many external threaded types for Campagnolo, Chris King, FSA MegaExo, Hope, SRAM/Truvativ GXP, Race Face X-type, Surly, Wheels, Fulcrum, and others
• Package Included: 1pcs 16-Notch Bottom Bracket Tool. Enjoy upgrading your bike