Machine Tools for Deburring, Polishing & Abrasive Finishing of Metal (NESOI)

Machines designed primarily for deburring sharp edges, vibratory finishing bowls, belt-finishing machines for surface conditioning, and robotic polishing cells for metal parts are typical examples. The key is that these machines are not designed to achieve the dimensional accuracy or geometric correction that defines grinding (846012–846029) or honing/lapping (846040). If a machine's primary function is cosmetic or edge-quality finishing rather than dimensional stock removal, 846090 is the appropriate heading.

When a machine and its functional attachment are imported together as a complete unit, they are generally classified as a whole based on the principal function of the combined system. If the deburring function is primary, the entire unit would be classified under 846090. If the attachment is sold separately as a spare or accessory, it may be classified independently. A licensed customs broker should be consulted to confirm the appropriate treatment based on the specific invoice and technical documentation.