In your before and after pics: you didn't mangle it (idle adjust screw), it was F'd well before you got to it with your drill. It wasn't even there.
What i don't get is the air screw, the before pic shows a mangled air screw as well...and the after pic shows a different/normal air screw.
What gives there?
So we should have had you take the pic sooner.
1st lesson is - no drills with carbs/scoots
Those are extreme/last ditch efforts if need be. Air tools, wrenches, sockets are ok.
there's no need to take any caps off anything on that carb to make adjustments. You'll see when your new carb comes, your idle screw sticks out, has a flathead screwdriver slot and spring for adjusting, same with the air screw (which may or may not have it's cap over it - yet it will still turn. No drill should ever be used to get that cap off either.