Heat treated alloy tool steel, one inch base fits wrench or bench vice. Thin wall construction allows use without removal of cones and locknuts. The FR-5.2 has 12 splines that are approximately 23.4mm across.

– Fits Shimano, SRAM (including 1x), SunRace, SunTour, Chris King and other cassette lockrings
– Also fits some Shimano disc brake lockrings
– Always use a quick release skewer to hold the tool in place and snug to cogs when loosening; For solid axles, use the axle nut.