8462.42.00 - Numerically controlled

This HTS category encompasses punching, notching, or nibbling machines designed for working with flat metal products. These machines are specifically excluded from the broader classification of presses. They are characterized by their ability to remove material from sheet metal through piercing, creating holes, notches, or intricate cut-outs. Combined punching and shearing machines, which perform both operations, are also included within this classification.

The distinguishing feature of this category from its sibling, 8462.49.00, lies in the specificity of their operation. While 8462.49.00 covers "other" punching, notching, or nibbling machines, this sub-heading is reserved for those that are numerically controlled. This implies a high degree of automation and precision, where the machine's operations are directed by pre-programmed numerical data.

Within this numerically controlled category, further subdivisions exist to refine the classification based on the condition of the machinery. Subcategories include "Used or rebuilt" (8462.42.00.40) for machines that have been previously operated and potentially refurbished, and "Other" (8462.42.00.80) for new or otherwise unclassified numerically controlled punching, notching, or nibbling machines for flat products.