8460.24.00.30 - Internal cylindrical

This classification, HTS Code 8460.24.00.30, specifically covers internal cylindrical grinding machines that are numerically controlled and not otherwise specified. These machines are designed for finishing operations on the interior surfaces of cylindrical workpieces using grinding wheels, abrasive belts, or other abrasive materials. The "numerically controlled" aspect signifies that their operations are guided by pre-programmed instructions, allowing for high precision and automation in the finishing process.

Distinguishing this category from its siblings, HTS Code 8460.24.00.10, "External cylindrical, including universal," focuses on machines designed for external surface grinding or those capable of both external and internal grinding. The sibling category 8460.24.00.50, "Other," is a residual category for grinding machines that do not fit into the more specific internal or external cylindrical classifications within this group. Therefore, 8460.24.00.30 is precisely for internal cylindrical operations where numerical control is a key feature.

As this is a leaf node within the HTS structure, there are no further subcategories. Classification within this specific code is determined by the machine's primary function (internal cylindrical grinding), the method of control (numerically controlled), and its exclusion from more narrowly defined categories like universal grinders. Examples of goods that would fall here include specialized CNC internal grinders used in the automotive or aerospace industries for precision bore finishing.