Features:Bottom Bracket Removal Tool: with 20 tooth, used to disassemble bike bottom bracket.Central axle disassembly sleeve meets the daily disassembly maintenance of the vehicle, practical.Tightly inserted into the keyway, uniform force, continuous teeth, no damage to the keyway, 20 tooth at the same time to generate force.Anti-shedding device: it can easily solve the problem that the cylinder cannot be fixed and is easy to get away from the central shaft.Adopt straight square design, fully fit with the central shaft keyway, small torque and large force area, protect the central shaft and tools.Surface oxidation treatment, high hardness, high strength, no rust.Pull tool bolded head, diameter increased to 9.5mm, difficult to wear.