Diamond Grinding Wheel
CN β US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 6804210090 | 35.0% | CN | US | Official Doc |
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AI Analysis
π Diamond Grinding Wheel & Agglomerated Diamond Millstones (Grinding Tools)
π HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Compliance Strategy
π 1. Product Definition & Classification: What Exactly is a "Diamond Grinding Wheel"?
Diamond grinding tools are high-precision industrial consumables used for grinding, sharpening, polishing, truthing, or cutting hard materials (such as ceramics, glass, carbide, and gemstones). In international trade, they are strictly classified based on their binding material and structure, not just their appearance.
Agglomerated Diamond Tools: Diamond particles bonded together with metal, ceramic, or resin binders, often formed into segments or wheels. These are distinct from solid natural stone or resin-bonded tools.
β οΈ Key Distinction Point: - If the tool is made of agglomerated synthetic or natural diamond (powder/dust bonded into shape) β It falls under 6804.21. - If the tool is made of natural stone only (no diamond content) β It falls under different sub-headings (e.g., 6804.22 or 6804.29). - Structure Matters: The specific item in refers to segments of diamond agglomerated attached to steel plates, which is a specific configuration often scrutinized for precise classification.
π¦ 2. HS Code Classification Details (2026 Latest Tariff Authority)
| HS Code | Product Description | Applicable Scenario | Binding Material |
|---|---|---|---|
6804.21.00.90 |
Millstones, grindstones, grinding wheels and the like, without frameworks, for grinding, sharpening, polishing, trueing or cutting... Of agglomerated synthetic or natural diamond Other | Primary Target Code. Covers agglomerated diamond tools. Specific examples include articles consisting of multiple segments of diamond agglomerated with metal, attached to circular plates of steel, without cutting parts. | Agglomerated Synthetic/Natural Diamond |
(Note: 6804.21.00.30 mentioned in source as description match, but final code is 90) |
See above | See above | See above |
π Focus Reminder: - The code
6804.21.00.90is the critical classification for agglomerated diamond grinding tools. - This includes specialized segments where diamond powder is agglomerated with metal binders and attached to steel backing plates. - Ensure your product does not contain cutting teeth (which might move it to Chapter 82), as the description specifies "without cutting parts (whether or not attached to non-steel plates)."
π° 3. 2026 Latest Tariff Rate Details (Including Surcharges & Policy Add-ons)
β Applicable Country: United States (US)
β Origin: China (CN)
β Effective Time: Current Rates (Based on provided data: 0.0% Base, 0.0% Additional)
π― 1. 6804.21.00.90 ββ Agglomerated Diamond Grinding Wheels / Millstones
| Item | Content |
|---|---|
| Base Tariff (MFN) | 0.0% |
| Section 301 / Additional Tariffs | 0.0% |
| Total Tariff Rate | 0.0% |
| Tax Calculation | CIF Value Γ 0.0% = $0.00 Duty |
| De Minimis Eligibility | β Yes (Likely eligible for $800 de minimis if shipping via courier, subject to current CBP enforcement) |
| Legal Basis Path | HTSUS: 6804.21.00.90 β General Rate of Duty |
π Explanation: - Unlike electronics or steel products, diamond grinding tools (HS 6804.21) currently enjoy a 0% tariff under the provided dataset. - There are no additional Section 301 tariffs or IEEPA surcharges listed for this specific HS code in the provided. - This makes it a cost-efficient product for import compared to many other industrial goods.
π οΈ 4. Customs Clearance Practical Advice (Real-World Pitfall Guide)
β 1. Required Documentation Checklist (Missing items cause delays)
| Document | Mandatory? | Description |
|---|---|---|
| β Product Specification Sheet | βοΈ | Must clearly state: "Agglomerated Diamond," "Metal Bond," "Segmented Wheel." |
| β Material Composition Report | βοΈ | Proof that the grinding surface is agglomerated diamond (not just diamond-dust on resin). |
| β Product Photos | βοΈ | Clear images showing: 1) The diamond segments, 2) The steel plate/backing, 3) No cutting teeth. |
| β Commercial Invoice | βοΈ | Description must match HS Code: "Grinding Wheel, Agglomerated Diamond, Metal-Bonded, Steel-Backed." |
| β Packing List | βοΈ | Detail weight and dimensions accurately. |
β 2. Declaration Tips (Key Mantra)
π₯ "Specify the Bond, Specify the Backing, Avoid 'Cutting' Labels!"
| Situation | Correct Declaration | Wrong Practice |
|---|---|---|
| Diamond segments on steel plate | 6804.21.00.90 |
Misdeclare as "Cutting Tool" (Ch 82) β Higher scrutiny/tariffs |
| Resin-bonded diamond wheel | 6804.21.00.90 (Check if "agglomerated") |
If it's just powder on resin, it might be different; ensure "agglomerated" is stated if true. |
| Natural Stone Millstone | 6804.22 or 6804.29 |
Misdeclare as Diamond β Customs audit for fraud/misclassification |
| Diamond Drill Bits | 8207 or 6804? |
Drill bits often go to Ch 82; Grinding wheels go to Ch 68. Do not confuse. |
β 3. Special Case Handling
| Situation | Handling Advice |
|---|---|
| "Without Cutting Parts" | The HS description explicitly says "without cutting parts." If your tool has teeth or cutting edges, it may be classified as a cutting tool (Chapter 82), not a grinding wheel. Ensure marketing materials say "Grinding/Polishing," not "Cutting." |
| Composite Structure | If the product is "Diamond Segment + Steel Plate," declare as the whole assembly under 6804.21.00.90 if the diamond part defines the essential character. Do not split-declare unless instructed by customs broker. |
| High Value Segments | Even with 0% tariff, ensure accurate valuation. Customs may question very low values for high-tech diamond tools. |
π 5. Global Market Comparison (2026 Overview)
| Country/Region | Recommended HS Code | Tariff Rate | Certification Requirements | Remarks |
|---|---|---|---|---|
| πΊπΈ USA | 6804.21.00.90 |
0.0% | None specific (General) | Zero Duty Advantage! |
| πͺπΊ EU | 6804.21 (VARIES) |
~4.5% - 6% | CE (if machinery part), REACH | Standard industrial duty |
| π¨π³ China | 6804.21.00.90 |
10% - 15% | N/A (Import Tariff) | High import duty for China buyers |
| π―π΅ Japan | 6804.21 |
0% - 5% | JIS Standards (Optional) | Often duty-free under EPA |
π Conclusion: - USA is the most tariff-friendly market for this specific HS code (0%). - China Importers face significant tariffs (~10-15%), so supply chain sourcing should consider this. - Ensure your product description aligns perfectly with "Agglomerated Synthetic or Natural Diamond" to qualify for the correct 6804.21 classification.
π 6. Common Errors & Pitfalls (Lessons Learned)
β Error 1: Calling the product a "Diamond Cutting Wheel" π Consequence: Customs may reclassify to Chapter 82 (Tools of Base Metal), which might have different (higher) tariffs and requires different licensing. π Fix: Use terms like "Grinding Wheel," "Polishing Pad," or "Abrasive Tool."
β Error 2: Ignoring the "Agglomerated" Distinction π Consequence: If you claim "Diamond" but it's actually just resin-bonded without agglomeration, it might fall under 6804.29 (Other), which could have a different duty rate. π Fix: Provide technical data confirming the "Agglomerated" structure.
β Error 3: Omitting the Steel Plate Detail π Consequence: If the steel plate is the dominant feature, customs might argue it's a steel tool. π Fix: Emphasize that the diamond segments are the functional part.
β Correct Declaration Example:
"Grinding Wheel, Agglomerated Diamond Segments (Metal Bond), Attached to Steel Backing Plate, for Polishing Ceramics, HS 6804.21.00.90, No Cutting Parts."
π― 7. Conclusion: Professional Declaration, Zero Duty Benefit!
π― Remember the Mantra:
πΉ "Agglomerated Diamond = 6804.21 = 0% Duty in USA"
πΉ "No Cutting Parts = Keep it in Chapter 68"
πΉ "Specify 'Metal-Bonded' or 'Agglomerated' to Avoid Misclassification"
π Pro Tip: Even with 0% tariffs, customs audits on diamond tools can be intense due to high value and potential for misclassification. Always have: 1. Technical Datasheets proving agglomeration. 2. Photos showing the structure. 3. Clear Intent (Grinding/Polishing, NOT Cutting).
β¨ Professional clearance starts with accurate classification!
πΌ Don't let a wrong HS code cost you time and money!
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About HS Code Classification
The Harmonized System (HS) is an internationally standardized nomenclature developed by the World Customs Organization (WCO) to classify traded products. Over 200 countries use the HS system as the basis for customs tariffs, trade statistics, and import/export regulations.
Each HS code follows a hierarchical structure:
- Chapter (2 digits) β Broad category of goods (e.g., Chapter 84: Machinery and Mechanical Appliances)
- Heading (4 digits) β More specific grouping within the chapter
- Subheading (6 digits) β Internationally standardized breakdown, used by all WCO member countries
- National subdivisions (8-10 digits) β Country-specific extensions for further classification, such as US HTSUS 10-digit codes
Correct HS code classification is essential for smooth customs clearance, accurate duty payment, and compliance with trade regulations. Misclassification can lead to customs delays, overpayment of duties, or penalties.
When importing from CN to US, the applicable tariff rates may include:
- Most-Favored-Nation (MFN) rate β The standard duty rate applied to WTO members
- General rate β Applied to countries without trade agreements
- Trade remedy duties β Additional tariffs such as Section 301 (anti-dumping), Section 232 (national security), or countervailing duties
The information provided on this page is for reference purposes only. For official classification, please consult with your local customs authority or a licensed customs broker.