This little piece of heat treated steel can change your life. Removing a freewheel can be intimidating until you have the right tool...then it"s lickety split. The FR-1.2 removes 5-, 6-, 7-, 8-, and 9-speed freewheels made by Shimano, Sun Race, DNP, Sachs, and more. Thin wall construction allows the tool to fit the freewheel"s 12 splines without removal of the hub cones and locknuts. It"s as easy as freewheelin". Heat-treated steel is ultra strong for stubborn freewheels Compatible Shimano, Sun Race, DNP, Sachs, and other 12-spline freewheels Thin wall design allows you to remove the freewheel without the hub cones or locknuts