Synthetic Diamond Grinding Wheel for Metalworking from China
A precision grinding wheel made from agglomerated synthetic diamond abrasives, designed for grinding and sharpening hardened steel tools and metal surfaces. It falls under HTS 6804.21.00.90 as it is a grindstone of agglomerated synthetic diamond, excluding common framework-mounted types. Used in workshops for high-precision finishing without frameworks.
Duty Rate — China → United States
37.5%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Verify abrasive composition certification to confirm synthetic diamond agglomeration per Chapter 68 notes
• Include material safety data sheets (MSDS) for diamond abrasives to avoid customs delays on hazardous classifications
• Label as 'without frameworks' to prevent misclassification under mounted tool headings