8462.51.00.40 - Used or rebuilt

This category, HTS Code 8462.51.00.40, specifically covers **used or rebuilt numerically controlled machine tools designed for working tube, pipe, hollow sections, and bar**. The "used or rebuilt" descriptor is critical here, indicating that these machines have had prior operational use and have undergone refurbishment or repair. This classification focuses on machinery that utilizes numerical control systems for precise, automated operations such as bending, straightening, or other shaping processes applied to tubular and bar stock.

Distinguishing this category from its sibling, 8462.51.00.80 "Other," is the explicit condition of being "used or rebuilt." While both fall under numerically controlled machines for working tube, pipe, hollow sections, and bar, the sibling category would encompass new machines or those not meeting the "used or rebuilt" criteria. The emphasis for 8462.51.00.40 is on the pre-owned status of the machinery, necessitating verification of its condition and any associated certifications or documentation.

As this is a leaf node, there are no further subcategories within HTS 8462.51.00.40. Therefore, classification at this level hinges on accurately identifying a machine tool for working tube, pipe, hollow sections, and bar that is numerically controlled and is definitively classified as either used or rebuilt, differentiating it from new equipment.