I have an assortment of brushes that I got at Harbor Freight. One set I know is for cleaning out the nozzles of air compressor attachments. Can't remember what the others said they were for. In any event, they are great for cleaning all the nooks and crannies of the sewing machine. I have a set in my kitchen as well for little places on drink bottles etc. My husband uses them to detail the car. I never vacuum my machine but after reading the posts I probably should.