OMG! I really screwed up my lungs in 2012 when I drilled a hole in a piece of asbestos siding. I really don't know what I was thinking. I knew better than that but I am Obsessive Compulsive and I wanted to get this last nail back in above a window I had replaced. I was in a hurry so I didn't even bother to go and get a mask. I just started drilling with a dull drill bit. I ground away and a voice said to me, you had better stop or you are going to get really harm yourse