- High quality material: center lock tool is made of 6061 aluminum alloy with T6 treatment. The center locking key can prevent deformation of the opening, and this tool is harder, more robust and rust-proof than ordinary wrenches, ideal for BB grooves. - Easy operation, precise results: centerlock tool is specially designed for safe and effective disassembly and assembly of inner and outer rings of various engines. Make your work easier and save time. - Ergonomic design: the handle of the centerlock tool brake disc is designed according to ergonomic principles. The comfortable handle reduces hand fatigue during hours of maintenance with the wrench and improves control and efficiency. - Portable design: centerlock key features a compact design so the bottom bracket remover is easy to carry and does not take up much space. The correct length provides enough leverage for comfortable handling. It fits easily into your bike bag, making it the perfect tool for on-the-go trips. - Use scenarios: ideal for removing or installing centerlock brake rotors on road, mountain, and lightweight e-bike systems; field maintenance during travel or cycling trips; workshop repairs requiring safe handling of inner and outer rings and BB components.