Bottom Bracket Remover: The crank remover is made of high-quality carbon steel, with a quenching process to make it hard. The sandblasted surface increases slip resistance. The screw is extended to 79 mm, the coaxiality is high, and the rotation is not deflected. You only need a 16 mm open-end wrench or an adjustable wrench to install and remove bicycle cranks. Bicycle Crank Remover (for Shimano Octalink and ISIS): The bicycle crank remover allows you to install and remove square cranks and bottom brackets. When removing the bottom bracket, you can grease the threads of the pedal remover with a little grease and screw the crank remover completely into the threads until it is completely screwed down, so as not to damage the threads.Multifunction: The bike bottom bracket remover also has the function of a hex wrench to loosen the hex screws, so no extra hex wrench is needed to carry. The bike crank remover set with portable and compact size makes it a small necessity for outdoor cycling.Bicycle Crank Remover: Suitable for repairing most bicycles, such as mountain bikes, road bikes, folding bikes, children's bikes, commuter bikes or electric bikes, etc. You can easily carry out repairs without asking for help from others. Professional bike tool for bike bottom bracket maintenance: The bike crank remover is made of high-quality forged steel, which is sturdy and corrosion-resistant. The crank extractor kit is specially designed for bike cranks. Ideal for outdoor cyclists and home bike mechanics.