Are These Lugs Swaged To The Drum?

Pretty sure my 10” front drums (‘68 Barrucuda) are out of round, so I’ve been wanting to replace them. Rock Auto currently has drums in stock. All the LH lugs on my car were already changed to RH lugs when I got it, but the drums are still firmly attached to both front hubs. I’m not sure if the swage has been removed or not, so here’s a pic. If the swage is still intact, could the PO have just swapped a right side hub/drum for the factory left side one?

If the swage is intact, I searched and found that the consensus is to use a 5/8” hole saw to remove it to free the hub from the drum. Being a ‘68, my car has 7/16” lugs, so wouldn’t a 5/8” hole saw be too big? Seems like a 9/16” would be a better fit.

Thanks for any advice and wisdom you’d care to share!

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