8456.20.10.10 - Numerically controlled

HTS code 8456.20.10.10 covers numerically controlled ultrasonic machines specifically designed for working metal. These machines utilize high-frequency sound waves to precisely remove material from metal workpieces, enabling intricate shaping, cutting, drilling, or finishing operations. The "numerically controlled" aspect signifies that these machines are operated by programmed instructions, allowing for high degrees of automation, repeatability, and precision in complex manufacturing processes.

This classification is distinguished from its sibling, 8456.20.10.50, "Other," which would encompass numerically controlled ultrasonic machines used for working materials *other than metal*, such as ceramics, plastics, or composite materials. The key differentiator lies in the primary material being processed.

As a leaf node, this category does not have further subcategories. Therefore, classification within 8456.20.10.10 is determined by the machine's inherent function of performing metalworking via numerically controlled ultrasonic processes. Examples include CNC ultrasonic milling machines, drilling machines, and cutting machines specifically engineered for ferrous and non-ferrous metals.