Chapter 82 covers base metal tools, implements, cutlery, spoons, forks and parts thereof, including hand tools, mechanical tools, knives, razors, scissors, etc. Tools of this chapter are usually made of base metal, but may have working parts of other materials (such as diamond, cemented carbide). Diamond saw blades, as cutting tools, have a base metal body and diamond particles as the working part, and are therefore classified in this chapter. Heading 8202 covers hand saws, various saw blades (including slitting saw blades, toothless saw blades, etc.), and saw bands. It includes saw blades for working metal, stone, plastics and other materials. Diamond saw blades, as a type of saw blade, are classified in this heading regardless of whether their working part is diamond, as long as the base is of base metal. First 2 digits 82: indicates Chapter 82, base metal tools, implements, cutlery, spoons, forks and parts thereof. Digits 3-4 02: indicates heading 8202, hand saws; various saw blades (including slitting saw blades, toothless saw blades); saw bands. Digits 5-6 31: indicates subheading 8202.31, saw blades with working part of diamond (including slitting saw blades or toothless saw blades). This subheading specifically refers to saw blades whose working part is diamond, regardless of the base material, but the base is usually steel. Diamond saw blades are classified in 820231 because their working part is diamond, meeting the description of subheading 8202.31. If the working part of the saw blade is of other materials (such as high-speed steel, cemented carbide), it is classified in 8202.39 or other subheadings. If it is a saw blade for mechanical sawing machines, it may be classified in 8464, etc., but as a separately presented saw blade, it is still classified in 8202.

Product Name: Declare the commodity name accurately as 'diamond saw blade' or 'diamond circular saw blade', etc., avoiding the generic term 'saw blade'. Use: Describe the specific use of the saw blade, such as for cutting stone, concrete, ceramics, etc., which helps confirm classification. Material: Declare the base material of the saw blade (such as steel) and the material of the working part (diamond), and specify the form of diamond (such as particles, coating). Brand: Declare the brand name (if any); if no brand, indicate 'no brand'. Model: Declare the product model to facilitate identification of specific specifications. Dimensions: Declare the diameter, thickness and other dimensions of the saw blade, which affect classification and valuation. Working Part: Specify whether the working part is diamond, and the distribution method of diamond (such as segmented, sintered). Product Name: Diamond circular saw blade; Use: For cutting marble; Material: Base is alloy steel, working part is diamond particles; Brand: No brand; Model: DB-350; Dimensions: Diameter 350mm, thickness 3.0mm; Working Part: Diamond segmented. Failure to indicate that the working part is diamond, which may lead to classification in other subheadings. Confusing diamond saw blades with cemented carbide saw blades, resulting in incorrect material declaration. Use description is not specific, making it impossible to determine whether it belongs to 8202.31.

The core basis for classification is the material of the working part of the saw blade. According to Chapter 82 notes and subheading texts, subheading 8202.31 explicitly covers 'saw blades with working part of diamond'. Therefore, as long as the working part of the saw blade (cutting teeth or abrasive layer) contains diamond, regardless of the base material, it is classified in this code. If the working part is of other materials, it is classified in 8202.39 (other saw blades with working part of steel) or 8202.40 (other saw blades). 820239 Other saw blades with working part of steel: This subheading is for saw blades whose working part is steel (such as high-speed steel), not containing diamond. Diamond saw blades have diamond as the working part, so they are classified in 820231. 820240 Other saw blades: This subheading is a residual clause, applicable to saw blades whose working part is neither steel nor diamond (such as cemented carbide). Diamond saw blades have a specific subheading and are not classified here. 680421 Millstones, grinding heads, etc., of natural or synthetic diamond: 6804 covers diamond abrasive tools, but diamond saw blades, as cutting tools, are more specifically classified in 8202 because they have saw teeth or cutting edges, rather than being grinding tools. 846410 Sawing machines: 8464 is for machine tools. If the saw blade is presented together with the machine tool, it may be classified as a machine tool; but a separately presented saw blade is still classified in 8202. Does the working part contain diamond? Is it a separately presented saw blade? Is the base material a base metal? Is the use for cutting? Is it presented together with a machine tool?

What is the difference in HS codes between diamond saw blades and cemented carbide saw blades? Diamond saw blades have diamond as the working part and are classified in 820231; cemented carbide saw blades have cemented carbide (such as tungsten carbide) as the working part and are usually classified in 820239 (if the base is steel) or 820240. The material of the working part must be accurately declared for classification. How to determine whether a diamond saw blade belongs to 820231? The key is whether the working part of the saw blade contains diamond. Regardless of whether the diamond is in the form of particles, coating or segments, as long as it is used for cutting and the saw blade is separately presented, it is classified in 820231. If the diamond is only an auxiliary wear-resistant layer rather than the main cutting part, careful judgment is required. What are the customs supervision conditions for diamond saw blades? Supervision conditions vary by destination and use, and may involve export tax rebates, commodity inspection, etc. For details, consult China Customs' 'Import and Export Tariff' and supervision condition codes. It is recommended to consult a customs broker or check the General Administration of Customs website. When declaring diamond saw blades, how to fill in the specifications and model? Key dimensions such as diameter, thickness, number of teeth, and the type of working part (such as diamond segments) should be filled in. The model can be the manufacturer's number. Specifications and model help customs valuation and classification. There are multiple subheadings for diamond saw blades; how to determine the most appropriate one? First confirm whether the working part is diamond; if so, classify in 820231; if it is other materials, then check whether it is a steel working part, classify in 820239; otherwise classify in 820240. Also note whether it is a part of a mechanical sawing machine; if presented together with the machine tool, it may be classified as a machine tool. What taxes are required for importing diamond saw blades? Usually import tariffs and value-added tax are involved, and the specific rates depend on the country of origin and trade agreements. Consult China Customs' 'Import and Export Tariff' or use customs classification pre-rulings. Rates may change; it is recommended to refer to the time of declaration. What is the difference in classification between diamond saw blades and diamond grinding discs? Diamond saw blades have saw teeth or cutting edges and are used for cutting, classified in 8202; diamond grinding discs are used for grinding, classified in 6804. Their uses and structures are different, and classification should be based on actual function. For cross-border e-commerce sales of diamond saw blades, how to query the HS code? Refer to China Customs' 'Import and Export Tariff' or use the classification query system of the General Administration of Customs. You may also consult a professional customs broker. Note that cross-border e-commerce retail exports may be subject to simplified declaration, but general trade still requires accurate classification.