8460.40.40.10 - Used or rebuilt 🖩

This HTS category, 8460.40.40.10, specifically covers numerically controlled honing or lapping machines. These sophisticated machines utilize automated systems, driven by numerical control, to achieve extremely precise surface finishing on metal or cermet components. The numerical control aspect allows for complex geometries and tight tolerances to be consistently replicated, making them essential for industries requiring high precision manufacturing.

This category is distinguished from its sibling, 8460.40.40.60 "Other", which encompasses non-numerically controlled honing or lapping machines. While both machine types perform honing and lapping operations, the key differentiator lies in the presence and function of the numerical control system. Machines classified here are characterized by their advanced programming capabilities and automated movement sequences, whereas "Other" encompasses simpler, often manual or less automated, honing and lapping equipment.

As this is a leaf node within the HTS structure, there are no further subcategories under 8460.40.40.10. Classification under this code is final once the criteria of being a numerically controlled honing or lapping machine for finishing metal or cermets using abrasive or polishing products are met. Examples of operations include achieving mirror finishes, precise geometric corrections, and preparing surfaces for subsequent processes like plating or coating, all executed via programmed sequences.