8466.93.53.40 - Of metalworking machine tools for grinding or finishing gears

This HTS category, 8466.93.53.40, specifically classifies parts and accessories made of metal designed for metalworking machine tools whose primary function is the grinding or finishing of gears. This includes components such as specialized heads, mounts, or toolholders that are integral to the operation of gear grinding or finishing machinery. The focus is on the precise shaping and surface treatment of gears through abrasive processes.

This classification is distinguished from its sibling category, 8466.93.53.85, "Other," by its highly specific purpose. While the sibling category would encompass a broader range of metalworking machine tool parts and accessories not otherwise specified, this node is reserved exclusively for those parts directly involved in gear grinding and finishing operations. The crucial determining factor is the machine tool's intended application for gear surface refinement.

As this is a leaf node within the HTS structure, there are no further subcategories. Classification within this code requires that the part or accessory be made of metal and be exclusively or principally used with gear grinding or finishing machine tools covered by headings 8456 to 8465. The physical form or function of the part, when viewed in the context of achieving a precise gear surface finish, will guide accurate classification.