This is the Park Tool CCP-44 Crank Puller, for Splined Octalink and ISIS Drive type cranks. The CCP-22 uses a long comfortable handle and extra fine thread that provides the needed leverage to remove even the tightest cranks. Features: Specifically designed to remove crank arms from splined Shimano(R) Octalink and ISIS Drive(R) bottom bracket spindles that do not use a "self extracting" system. 22 x 1 mm fine thread provides leverage needed to remove tight crank arms. Strong rotating tip system ensures smooth operation and long life.