Park Tool BBT-18 Bottom Bracket Tool for 8-Notch ISIS Cups Gunsmithing Accessories Exclusive Tack Grip handles and

Exclusive Tack Grip handles and weatherproof durability

5 Compression Fittings

in particular

8 mm body height from axle centre to cleat contact surface Silky smooth 3-bearing axle system

Park Tool BBT-18 Bottom Bracket Tool for 8-Notch ISIS Cups Gunsmithing Accessories Exclusive Tack Grip handles andThe BBT 18 is a heavy duty investment cast tool for removing and installing components with an eight notch tool fitting, including select cartridge bottom brackets, as well as chainring lockrings on some e bike drivetrains. BBT 18 FEATURES Installs and removes the following components with eight notch tool fittings: Shimano Octalink drive side bottom bracket cups with external notches ISIS Drive bottom bracket cups including Truvativ and Bontrager