8462.90.40 - Numerically controlled

This HTS category, 8462.90.40, specifically encompasses "numerically controlled" machines and presses used for working metal, falling under the broader scope of metalworking machinery. These are distinct from manual or mechanically controlled machinery within the same chapter. The defining characteristic here is the use of numerical control systems (e.g., computer numerical control or CNC) to automate and precisely direct the metalworking operations.

Within the "Other" group of machines for working metal by forging, hammering, die forging, bending, folding, straightening, flattening, shearing, punching, notching, or nibbling (8462.90), this subcategory is differentiated by its advanced automated control. While sibling category 8462.90.80 also falls under "Other," it would cover numerically controlled machines or presses not fitting into more specific subheadings, or those that are not numerically controlled at all. This classification is for those *specifically* designated as numerically controlled.

The subcategories under 8462.90.40 further refine this classification based on the condition of the machine. 8462.90.40.10 is for numerically controlled machines that are used or have been rebuilt, indicating they are not new. Conversely, 8462.90.40.30 covers all other numerically controlled machines under this heading that do not meet the criteria for "used or rebuilt," essentially encompassing new machinery.