The BOTTOM BRACKET TOOL is made by high precision CNC machine to provide better contact area and stability of operation.
It can suitable for different specifications of BB and prevent tool slippage druing use.

MATERIAL : AL7075
COLOR : TL-BB-EXT56  Silver
               TL-BB-EXT50  Gold
               TL-BB-EXT48  Green
               TL-BB-EXT43  Gray

Click to view the spec → EXT56 (Silver)  EXT50 (Gold)  EXT48 (Green)
                                           EXT43 (Gray)