Park Tool BBT-9 External Cup BB and Hollowtech II ,Blue

The Park Tool BBT9 Bottom Bracket and Crank Arm Tool has been designed to remove and install Shimano Hollowtech II bottom brackets. The highly durable Park BBT9 has been fully specced to offer high performance with its well-made design and innovative features that make it incredibly easy to use. This Park Tool bike tool has a plastic coated handle which delivers a secure and comfortable grip. 16 Laser cut splines securely engage the notches of the bottom bracket cups while the other end fits the 8 inter... - Manufacturers part number: BBT-9

• Also fits the rotor disc lockrings using 16 external notches
• Other end of the tool engages the 8 internal splines of the crank arm adjustment cap
• One end engages the 16 notches of the bottom bracket cups
• Used to remove and install external bearing crankset bottom brackets