Positz Compact Crank Wrench and Puller Bicycle Tool Universal design - Removable head to fit all ISIS or tapered type BB's Fits Traditional Tapered Square BB / Shimano Octalink Splined / ISIS Splined Excellent value workshop quality tool, suitable for DIY or professional repairs Similar to Park Tool Compact Crank Puller Crank tool to remove your crank from Shimano spindle, over-sized BB and ISIS drive