Park produce a wide range of freewheel removal tools, with something to fit all the different types of freewheel, both modern & classic. The FR1 is specifically made to fit the popular Shimano Uniglide, Sun Race & Sachs Aris freewheels & consists of an oversized centre hole & thin wall design which means it can be used without having to remove cones & locknuts from the wheel axle. This is a workshop quality tool in investment cast, heat-treated steel for strength & durability. The one-inch base fits Park's SR-1 or FRW-1 tool or can simply be used with an adjustable spanner or clamped in a vice.