8466.93.98.40 - Of metalworking machine tools for grinding or finishing gears

This HTS classification, 8466.93.98.40, specifically covers parts and accessories made of metal that are designed for metalworking machine tools primarily used for grinding or finishing gears. This includes items such as specialized tool holders, chucks, collets, or fixtures that are integral to the operation of gear grinding or finishing machinery within the scope of headings 8456 to 8461. The emphasis is on components that directly facilitate the precise shaping or surface treatment of gears by these specific types of machine tools.

This category is distinguished from its sibling, 8466.93.98.85, by its highly specialized purpose. While 8466.93.98.85 encompasses "Other" parts and accessories for machines of headings 8456 to 8461, this particular subcategory is narrowly defined to include only those items directly involved in the gear grinding or finishing process. Therefore, if a metal part or accessory for a machine tool within the specified headings is not specifically intended for the grinding or finishing of gears, it would likely fall under the broader "Other" sibling category.

As this is a leaf node within the HTS structure, there are no further subcategories under 8466.93.98.40. Classification at this level is definitive, requiring a precise determination that the imported item is indeed a metal part or accessory for a qualifying gear grinding or finishing machine tool. Practical classification hinges on verifying the intended use and design of the component in relation to the specific metalworking operations it supports, ensuring it is not a general-purpose accessory.