HS Code for Grinding Wheels
The HS Code for grinding wheels is 680422. The MFN duty rate for importing to the US is Free.
| HS Code (6-digit) | 680422 |
|---|---|
| US Duty Rate (MFN) | Free |
| EU Duty Rate (MFN) | 1.7% |
| Chapter | 68 |
| Heading | 6804 |
| Last Updated | 2026-05 |
Verified Sourcing Partner
WOSEN TOOLS - Diamond Grinding Tooling
Technical sourcing for Husqvarna, Lavina, HTC, Diamatic machines. Bond selection support included.
View Tooling Catalog →Description
Millstones and grindstones of other agglomerated abrasives
HS Code 680422 covers grinding wheels of other agglomerated abrasives, which are imported duty-free into the United States.
Frequently Asked Questions
How does the bonding material of a grinding wheel affect its classification under HTS 680422?
HTS 680422 specifically covers millstones and grindstones made from 'other agglomerated abrasives,' which are typically bonded with synthetic resins or ceramics. If your grinding wheel uses a vitrified (glass-based) bond, it may fall under a different heading, such as 6804.10. The classification hinges on whether the abrasive grains are agglomerated with these specified bonding materials versus vitrified bonds or simple surface coatings.
Are grinding wheels classified under HTS 680422 at high risk for customs inspection due to their physical composition?
Yes, due to their composition of agglomerated abrasives, these products are frequently inspected to verify they are not composed of crystalline silica, which may be subject to anti-dumping duties or health regulations. Customs authorities also scrutinize the bonding material and physical specifications to ensure correct classification and value declaration.
What additional U.S. import costs, beyond the duty rate, apply to grinding wheels under HTS 6802.22?
Grinding wheels of agglomerated abrasives are subject to a Merchandise Processing Fee (MPF) of 0.3464% of the entered value (minimum $31.67, maximum $648.65 per entry). For shipments arriving by vessel, you must also pay the Harbor Maintenance Fee (HMF) at 0.125% of the shipment's value.
Grinding Wheel Materials & Classification
The classification of grinding wheels under 6804.22 is specifically for those made of agglomerated synthetic or natural diamond. Wheels made with other superabrasives, like cubic boron nitride (CBN), are classified separately under 6804.23. Wheels made from traditional, non-superabrasive materials (e.g., aluminum oxide or silicon carbide) fall under a different heading, typically 6804.10. Therefore, the key material distinction is diamond versus non-diamond abrasives, which dictates the correct 8-10 digit HTS code.
Alternative & Potentially Confused Classifications
Grinding wheels are primarily classified under 6804.22, but the specific bonding agent is critical. Wheels with a resinoid bond (e.g., phenolic resin) belong here. However, wheels with a mineral ceramic bond (e.g., vitrified or silicate) fall under 6804.21. Additionally, natural sandstone grinding wheels, which are less common, are classified separately under 6804.10. Always verify the bond material to choose between 6804.22, 6804.21, and 6804.10.
Related HS Codes
WOSEN TOOLS sourcing check
Diamond grinding tooling buyers should match bond, grit, and attachment before sourcing.
Get bond and fit checked by WOSENOpens WOSEN Bond Selector with HTSKit source identifiers attached.
Related Tools
Get tariff change alerts
We'll email you when duty rates change for products you care about. No spam.