Having the right tool for the job is essential when working on modern bicycles. Pedro's socket tools provide the professional quality, precision fit tools required to properly install, remove, and adjust modern drivetrain components. Working closely with each manufacturer, Pedro's designed each socket tool to fit perfectly, protecting the component and ensuring simple and safe usage for the mechanic. The Splined Bottom Bracket Socket is designed to work seamlessly with Pedro's snap-channel Pro Socket handle, with any 24mm socket/wrench, with any square 1/2" drive, or in a bench vise (each sold separately). For tough bottom bracket jobs, make sure to check out the BB Socket Holder (sold separately) designed to help hold the Splined Bottom Bracket Socket in place.