1. Quality Material: The center lock tool is crafted from 6061 aluminum alloy with T6 treatment. The central locking key prevents opening deformation, making this bike tool harder, more durable, and rustresistant compared to standard wrenches. It's ideal for BB grooves. 2. Easy Operation, Precise Results: The center lock tool is specially designed for safe and efficient disassembly and assembly of inner and outer rings on various engines. It simplifies your work and saves time. 3. Ergonomic Design: The handle of the center lock tool brake disc is designed based on ergonomic principles. The comfortable grip reduces hand fatigue during prolonged maintenance, enhancing user ease and work efficiency. 4. Portable Design: The center lock key features a compact design, making the bottom bracket remover easy to carry without occupying much space. Its length provides sufficient leverage for comfortable handling. It fits effortlessly into your bike bag, making it the onthego tool to ensure a smooth trip.