I do have neighbor hood kids I pay to do stuff, mostly so they have an opportunity to earn a little fun money. I am using an angle grinder without a guard and even I am leery of working with it. Children are out of the question just way too dangerous.
I have used a lot of abrasives in my life but these are by far the best:
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It ate the paint like it was butter. I got the job done in 1/4 of the time I was thinking it would take. I bought 2 of them and 1 was only about 20% used! The bare metal has all been wiped down with acetone and primered.
I am spent. I will do some dabs in a bit and go watch cartoons and take a nap.