A slotting machine uses a single reciprocating tool that removes material in successive passes, with the workpiece or tool indexed between strokes. A broaching machine pulls or pushes a multi-tooth broach through the workpiece in a single stroke. The number of cutting edges engaged simultaneously and the motion pattern are the defining differences; broaching machines fall under a separate SITC heading.

Machines originating from China may be subject to Section 301 tariffs depending on their specific HTS classification at the 10-digit level. Importers should verify current Section 301 product coverage and any granted exclusions against the applicable HTS subheading before finalizing sourcing decisions, as coverage has been updated multiple times since the measures were first imposed.