Park`s dependable FR-5.2 with an added 5mm guide pin for added stability when removing lockrings from quick-release hubsDesigned for 12 spline 23.4mm diameter tool fittings - the most common tool fitting found on 7-12 speed cassette lockrings, and can also be found on some disc brake lockringsMade from heat treated alloy tool steelLockring Tool12 spline x 23.4mmFR-5.2GUPC/EAN/GTIN: 763477003348