For some reason I thought these wire brushes were tiny, about the size of a Dremel tool. You are not. They are larger and designed for use with a cordless drill. There is nothing special about them - they are suitable for cordless drilling tasks. I kept them because I always waste wire brushes trying to remove rust or old paint from this or that piece of metal. I want her size to be immediately noticeable; I bought Dremel sized wire brushes and this isn't it.