Heat treated alloy tool steel, one inch base fits wrench or bench vise. Thin wall construction allows use without removal of cones and locknuts. The FR-5G has 12 splines that are approximately 23.4mm across.
Fits Shimano®, SRAM®, SunRace®, SunTour®, Chris King® and other cassette lockrings
Fits the SRAM® XX1® 11-speed cassettes
Also Fits Shimano® disc brake lockrings
Guide pin stabilizes tool