8202.40 - Chain saw blades, and parts thereof:

This HTS category, 8202.40, specifically covers chain saw blades and parts thereof. Chain saw blades are designed for use with chain saws, a type of mechanical saw that cuts with a set of teeth attached to a rotating chain. This includes both the complete blades and individual components that make up these blades.

Distinguishing this category from its siblings, 8202.40 differs from handsaws (8202.10) and bandsaw blades (8202.20) by its specific application with chain-driven cutting mechanisms. While 8202.20 covers the flat, continuous loops of bandsaw blades, and 8202.10 encompasses manual handsaws, 8202.40 is exclusively for the unique blade design employed by chain saws. It also stands apart from other saw blades by its distinct mechanism of action.

Within 8202.40, further subdivisions exist based on the material composition of the cutting parts. Subcategory 8202.40.30.00 applies to chain saw blades where the cutting teeth contain specific alloying elements in significant quantities, namely over 0.2 percent by weight of chromium, molybdenum, or tungsten, or over 0.1 percent of vanadium. The remaining chain saw blades and parts fall under the broader category of "Other" at 8202.40.60. This distinction is crucial for determining the precise tariff treatment.