Both chippers (8465960025) and hogs (8465960030) reduce wood to smaller pieces, but they operate differently: chippers use rotating knives or discs to produce uniform chips, while hogs use hammers or irregular cutting elements to produce coarser, less uniform material. The distinction matters because they occupy separate 10-digit lines. Importers should reference the manufacturer's technical description and the machine's cutting mechanism to determine the correct classification, and retain that documentation in case of CBP inquiry.

Both consumer and industrial log splitters for wood fall under 8465960015, as the HTS does not subdivide log splitters by capacity or end-use within this heading. However, importers should confirm that the machine's primary function is splitting wood — hydraulic log splitters designed for firewood production are the typical example. Machines that also perform other operations (e.g., combined splitter-chippers) may require classification under the NESOI line or a different heading depending on principal function.