Designed 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 lockrings and Rock Shox suspension fork top capsThin wall construction allows use without removal of cones and locknutsMade from heat treated alloy tool steelLockring ToolShimano, Sunrace, Suntour, Chris King, Sram 12 spline - 23.5mmFR-5.2UPC/EAN/GTIN: 763477003485