A fast and convenient tool to remove and install 12-spline Shimano/SRAM style cassette lockrings, as well as similar lockrings on rotor discsThe FR-5.2H features a modified FR-5.2 tool that allows use without removing most quick-release skewer nutsThe removable threaded steel handle makes it possible to replace a worn or damaged headCenter bore for axle or quick-release nut clearance is 20mmLockring ToolFits 12-spline, 23.5mm DiameterFR-5.2H19.75mm IDUPC/EAN/GTIN: 763477003409