Angle grinder discs?

Originally Posted by Rowdy

... Maybe it will just wrap itself up in your shirt, or maybe you'll have cool scars from it. It is like any other tool, dangerous in the hands of the inattentive or fools.

Agreed. I keep the guard in place and only use proper, high-quality wheels. But I'll often set the grinder on its back, and run tubes or wire along it to remove aluminum sheet or insulation. A couple times, my hand got too close to the wheel and I'd scrape the knuckle on my thumb. Didn't do much, but reminded me of how quick it could do some real damage.