drilling out lugs from hub, disc brake upgrade

How did this get so controversial?
The pics in Post #1 make it perfectly clear what needs to be done, doesn't it?
A) Cut the swedge off, bash 'em back out the way the came in, or
B) do what the OP did; an easy solution to not having a cutter, but having the time.Drilling deep enough allows the shanks to fold in, and out they go.

Sure you can grind off the flanges, but that does not solve the shank issue.
Sure you could cut the stud off, but that does not solve the swedge issue.
Drilling as shown solves both issues. If I had this job ahead of me, I know what method I'd be using. I'm semi-retired and might have 2 or more decades ahead of me to get this done,lol.