7 Brushes for use in machines; Industrial brushes for use with machines; Brushes for use in machines, namely, brushes used to surface finish, deburr, edge blend, or condition metal machine parts; Brushes for use with machines, namely, brushes used to surface finish, deburr, edge blend, or condition engine parts, engine cylinders, combustion chambers, and power generation cylinders; Brushes for use in machines in the nature of power-operated portable, flexible, abrasive, polishing, and grinding brushes