A fast and convenient tool to remove and install 12-spline Shimano/SRAM style cassette lockrings, as well as similar lockrings on rotor discs. The FR-5H features a modified FR-5 tool that allows use without removing most quick release skewer nuts. The removable, threaded steel handle makes it possible to replace a worn or damaged head. - Fits Shimano, SRAM (including 1x), SunRace, SunTour, Chris King and other cassette lockrings - Also fits some Shimano disc brake lockrings