Part of a comprehensive range of freewheel removal tools. Oversized centre hole and thin wall design allows use without removal of cones and locknuts. Investment cast and heat-treated for strength and durability. One-inch base fits end of SR-1 FRW-1 Park tools or simply an adjustable wrench or bench vice. Fits Shimano Uniglide Sun Race and Sachs Aris freewheels.