Tungsten Carbide Ceramic Grinding Discs
Fired WC ceramic discs for sample preparation in geological labs. Meets 9+ Mohs hardness for durability in technical grinding, under Chapter 69 HTS 6909.12. Suitable for rock and mineral pulverization.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If softer corundum-based
Lower hardness grinding discs for labs use the 6909.11 subhead.
If band/metal saw tools
Tool inserts with saw characteristics exclude to Chapter 82 saws and blades.
If thicker than 3.2 cm tiles
US note excludes thick ceramic tiles from technical wares to heading 6907.
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Import Tips & Compliance
• Certify as fired ceramic, not metal tool; declare lab grinding to dodge Chapter 82 exclusions
• Test thickness if tile-like
Related Products under HTS 6909.12.00.00
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Fused Silica Distillation Flask
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Aluminum Oxide Technical Packing Jars
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