Christy,
One piece of advice, do not walk around barefoot in an area where you've used the Dremel wire wheels. I learned that the hard way. Those little wires develop a barb on the end and when you dig them out it hurts.
Wear safety glasses while using those too.
I love those little things, but they are dangerous.
Never heard about the super glue in the middle. I'll try that. Can't hurt.
Joe