Once you have a dremel you'll find all sorts of uses for it. We have 4 of them around here - one Canadian Tire branded one, one cheap knock off one and 2 dremel branded ones. My favorites are the dremel branded ones. The cheapie one I can stop with my fingers - which also means it stops when it hits the work too sometimes causing unintended effects. DH has used one of the Dremels to clean up a corroded bobbin case using a polish. One featherweight bobbin case saved after being set on a cold window sill for a couple of months.