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Slate Honing Stone

Natural slate stone for honing and lapping flat surfaces in metalworking. Excluded from 6802 slate per chapter note; HTS 6804.23.00.00 for abrasive uses.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+37.5%37.5%
🇲🇽MexicoFree+10.0%10%
🇨🇦CanadaFree+10.0%10%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+12.5%12.5%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

6803.00.50.00Same rate: 37.5%

If worked slate roofing

Slate for building under 6803.

8442.50Lower: 12.5% vs 37.5%

If lithographic use

Chapter note excludes litho stones.

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The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.

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Import Tips & Compliance

• Explicitly note 'abrasive, not lithographic' to dodge exclusions

• Flatness tolerance docs for industrial claims

Related Products under HTS 6804.23.00.00

Soapstone Burnishing Stone

Steatite (soapstone) block for burnishing pottery and leather edges, providing a smooth finish in craft applications. Classified in HTS 6804.23.00.00 for polishing/trueing stones of natural stone, as steatite qualifies per chapter provisions. Its softness makes it ideal for delicate surface work.

Limestone Cutting Stone

Natural limestone whetstone for cutting and shaping soft metals or stone in sculpting. Falls under HTS 6804.23.00.00 as a cutting stone of natural stone, worked beyond raw form per chapter notes. Used by masons for precise edge work.

Basalt Grindstone

Volcanic basalt grindstone for heavy-duty grain milling and tool grinding in traditional setups. HTS 6804.23.00.00 covers such natural stone grindstones without frameworks, valued for basalt's toughness.

Arkansas Novaculite Sharpening Stone

Premium natural novaculite (Arkansas stone) for ultra-fine edge sharpening of surgical tools and razors. Under HTS 6804.23.00.00 as a hand sharpening stone, renowned for its silica content and translucency.

Dolomite Polishing Block

Natural dolomite block for polishing glass and gems, per chapter inclusion of dolomite as worked stone. HTS 6804.23.00.00 for polishing applications.

Travertine Whetstone

Porous natural travertine whetstone for wet sharpening of tools. HTS 6804.23.00.00 as natural stone sharpener.