These are photos of a large snap ring tool I made using an existing Panavise. My first try was simply to drill holes in existing nylon jaws and insert pins. This worked to install the snap ring, but when I had milling problems, wouldn't remove it (inadequate reach). So I made some new jaws of cold rolled with a better orientation. Now it works to remove or install the large retaining ring. Time is cheaper for retirees than +$100 tools for limited use. Pete Keillor retainingringtool01.jpg 1st try, pre installation retainingringtool02.jpg ring installed retainingringtool03.jpg fabbed cold rolled jaws retainingringtool04.jpg ring removed retainingringtool05.jpg another view