Brake Drum Hub Assembly Mystery

I don't know the real reason the factory swaged the studs to lock the drums onto the hubs. But as stated, if you don't cut the swedge before pressing the studs, you will ruin the hub, which is made of unobtanium. I do have the swedge cutting tool in both the "A" body 7/17 size, and the larger car 1/2 size. Years ago I did have the swedge tool, but that disappeared a long time ago.