HS code 6804.21: Other millstones, grindstones, grinding wheels and the like, of agglomerated synthetic or natural diamond
Last updated
Key facts
- HS code
- 6804.21
- Covers
- Other millstones, grindstones, grinding wheels and the like, of agglomerated synthetic or natural diamond
- Edition
- HS2022
- Duty in the United States
- See its 4 lines
Summary
HS code 6804.21 covers other millstones, grindstones, grinding wheels and the like, of agglomerated synthetic or natural diamond. It sits in heading 68.04 (millstones, grindstones, grinding wheels and the like, without frameworks, for grinding, sharpening, polishing, trueing or cutting, hand sharpening or polishing stones, and parts thereof, of natural stone, of agglomerated natural or artificial abrasives, or of ceramics, with or without parts of other materials) in chapter 68 (articles of stone, plaster, cement, asbestos, mica or similar materials). Other goods of heading 68.04 are classified under 6804.10 (millstones and grindstones for milling, grinding or pulping), 6804.22 (other millstones, grindstones, grinding wheels and the like, of other agglomerated abrasives or of ceramics), 6804.23 (other millstones, grindstones, grinding wheels and the like, of natural stone) or 6804.30 (hand sharpening or polishing stones). National tariff lines under 6804.21 are live on border.bot for the United States (4 lines, also used by 1 other country).
What this code covers
HS code 6804.21 covers other millstones, grindstones, grinding wheels and the like, of agglomerated synthetic or natural diamond.
The legal text of the subheading is “Other millstones, grindstones, grinding wheels and the like: Of agglomerated synthetic or natural diamond”, read under “Other millstones, grindstones, grinding wheels and the like”, in HS2022.
What it doesn’t cover
Other goods of heading 68.04 are classified under 6804.10 (millstones and grindstones for milling, grinding or pulping), 6804.22 (other millstones, grindstones, grinding wheels and the like, of other agglomerated abrasives or of ceramics), 6804.23 (other millstones, grindstones, grinding wheels and the like, of natural stone) or 6804.30 (hand sharpening or polishing stones).
- 6804.10Millstones and grindstones for milling, grinding or pulping
- 6804.22Other millstones, grindstones, grinding wheels and the like: Of other agglomerated abrasives or of ceramics
- 6804.23Other millstones, grindstones, grinding wheels and the like: Of natural stone
- 6804.30Hand sharpening or polishing stones
How it is structured
6804.21 is a six-digit subheading. Its first two digits, 68, are the chapter; the first four, 6804, are heading 68.04; the last two, 21, identify the subheading within the heading.
Countries add their own digits after these six for their national tariff lines.
- Within the heading
- Other millstones, grindstones, grinding wheels and the like
- Subheading 6804.21
- Of agglomerated synthetic or natural diamond
In other countries
National tariff lines under 6804.21 are live on border.bot for the United States (4 lines, also used by 1 other country).
- United States4 lines, used by 1 other country
Frequently asked questions
What does HS code 6804.21 cover?
HS code 6804.21 covers other millstones, grindstones, grinding wheels and the like, of agglomerated synthetic or natural diamond.
Which heading and chapter is HS code 6804.21 in?
HS code 6804.21 is in heading 68.04 (millstones, grindstones, grinding wheels and the like, without frameworks, for grinding, sharpening, polishing, trueing or cutting, hand sharpening or polishing stones, and parts thereof, of natural stone, of agglomerated natural or artificial abrasives, or of ceramics, with or without parts of other materials) in chapter 68 (articles of stone, plaster, cement, asbestos, mica or similar materials).
Where are goods of heading 68.04 classified when 6804.21 doesn’t fit?
Other goods of heading 68.04 are classified under 6804.10 (millstones and grindstones for milling, grinding or pulping), 6804.22 (other millstones, grindstones, grinding wheels and the like, of other agglomerated abrasives or of ceramics), 6804.23 (other millstones, grindstones, grinding wheels and the like, of natural stone) or 6804.30 (hand sharpening or polishing stones).
Which countries’ tariffs list national lines under HS code 6804.21?
National tariff lines under 6804.21 are live on border.bot for the United States (4 lines, also used by 1 other country).
Sources and updates
The Harmonized System legal text comes from border.bot release 2 (edition HS 2022), imported from a file, and has been live since 11 October 2026.
This page was last updated on 11 October 2026.
Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.