For removing and installing cassette lockrings on Shimano-compatible freehub bodies and some Centerlock disc brake systems.

• Fits 12-spline cassette lockrings from Shimano, SRAM, SunRace, SunTour, Chris King and others

• Has a specially modified head that allows removal and installation of some 12-spline cassette lockrings without removing the hub's quick-release skewer nut

• Removable, threaded handle makes replacement of a worn or damaged head quick and easy