Fits all Shimano freewheels since 1985, Uniglide before 1985; S.I.S. and Sachs Aris freewheels. Heat treated alloy tool steel, one inch base fits wrench or bench vise. Thin wall construction allows use without removal of cones and locknuts. Use the FR-5 for the cassette type lockrings.
NOTE: Not intended for use with Falcon brand freewheels. Use the FR-7 for the Falcon brand.