Originally Posted by woodbutcher1
Claude,if you can,do most of your grinding on the bottom side of the rolled edge. This will give you some material that can be pried open for a potentially good fitting lid. Good luck. Remember only grind through 1 layer of metal.
We found when grinding through it's pretty easy to see the separation as you get through so this may really work. On "Daleks" drum it had been full of olive oil and it actually seeped out as he ground through.
Even on the thin one you still have to be deliberate to get through it. Just keep the flat of the wheel on the surface, staying away from the edge of the wheel, which can dig in pretty quickly.