Those look like the same disks that come with the Wagner Paint Eater which I bought, use and recommend. Those disks will cut through paint like nothing and not remove any metal.
I've gotten a lot of flak for so much as mentioning these things but gradually, over time even the old timers will come around.
They really are THAT good.
As an aside, I went to the Norton website and will be awarding them the prestigious "STUPIDEST WEBSITE OF THE WEEK AWARD" Don't these morons want to SELL anything? UGH!