This park tool crank puller provides park quality to those with shimano octalink or isis splined cranks it has a floating tip which seats against the bottom bracket axle for smoother operation and longer life and a fine thread for a low force operation the handle is coated with vinyl for durability and comfort in use park tool crank puller for splined cranks features it uses a long comfortable handle and a fine thread for the leverage needed to remove tight crank arms unique rotating tip