Set contains 4 bearing splitters and 1 V-Belt Pulley Pulling attachment tool. Use to remove bearings, races, and seals from axles, wheel hubs, transmissions, etc. without damaging the bearing or other components. This allows old bearings to be replaced with new ones. Included bearing splitter sizes: #8160 - Bearing splitter - Working Range: 1/4" to 15/16"; #8060 - Bearing splitter - Working Range: 1/8" to 2"; #8065 - Bearing splitter - Working Range: 1/2" to 4-5/8"; #8155 - Bearing splitter - Working Range: 1/2" to 9"; #8165 - V Belt Pulley Pulling attachment - Working Range: 1-3/4" to 5-7/8". Packaged in a durable blow mold carrying case.