Tungsten Carbide Buttons for Rock Drilling from China
Hemispherical tungsten carbide buttons inserted into drill bits for mining. HTS 2849.90.30.00 for these sintered, unmounted carbide pieces. Provides extreme hardness for hard rock penetration.
Duty Rate — China → United States
30.5%
Rate breakdown
9903.91.0125%Effective with respect to entries on or after September 27, 2024, articles the product of China, as provided for in subdivision (b) of U.S. note 31 to this subchapter
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Certify as loose buttons, not assembled bits; check AD/CVD on origins
• Pitfall: brazed buttons become 8207.19 finished tools