B.B. Socket Hollowtech® II B.B. Tool

1/2" Dr. socket. Compatible with Shimano® Hollowtech II™ or other 16-notch Ø44mm external bearing bottom bracket cups and 16 notch rotor disc lockrings (incl. E-Thru axle hubs). Fits Shimano® BB Tool Adaptors TL-FC24 and TL-FC25. Material: CNC machined hardened steel. Size: Ø55x45mm