Brushes constituting parts of machines, appliances, or vehicles are classified under 960350 within heading 9603, not with the machine itself, provided they are presented separately. When imported as an integral part of a complete machine, classification follows the machine.

Artists' brushes and writing brushes in 960330 are designed for fine-art, calligraphy, or cosmetic application. Paint, distemper, and varnish brushes in 960340 are trade or household tools for applying coatings to surfaces. The intended end-use and construction — bristle fineness, handle type, ferrule design — are the practical distinguishing factors.