This socket starts out as your standard OTC 6612 1/2" drive 54mm Hub Socket that is Made in USA. This hub socket is needed anytime you are going to work on your Toyota's 4WD front hub. The reason for modifying this hub socket is so that it can be dual purposed to be used as a REAR axle nut tool as well. The OEM tool from Toyota costs $50 and it serves one purpose. This hub socket allows you to loosen and tighten the hub locking nut for both the front and rear axles.
This modification is an old design and not original to Wits' End. But the reason for making a few of these is so for those that do not have the necessary equipment to modify their own socket or don't have the proper specs to do so.