dremels aren't as expensive as you'd think such an amazingly useful device ought to be, but yeah, watch out for the flash & steel dust crap. I use it almost daily & used to think I was real careful til I had to go to the damn ER so a pretty doctor could pluck a caltrops shaped bit of steel out of my eye. Didn't even know it was in there for a day, then I though I had pink eye, then I found the ****er & way too late for emergency eyewash. ****er had started to rust, looked weird & the rust meant I had to pt weird drops in my eyes for a few days.
Course I had been grinding for hours that day. Still, I like my new milwaukee sasfety googles & lil 3m breathing masks, they actually work, and don't come off til cleanup is done. Plus as a reward for going to the ER i got to go to the machine tool shop to buy them! Looove the machine tool shop
I think my dremel cost me $70 ten years ago, & the sears/craftsman rotary tool I use now cost about that much now, plus the $$ for bitsnpeices. that's cheaper than a new lock, almost sheaper than a krypto chain by its lonesome.