Crystal Boule Grinder Chuck Holder
A vacuum chuck holder accessory for crystal grinders, securing semiconductor boules during diameter and flat grinding to wafer specifications. It is specifically designed for use with crystal grinders of heading 84.65, featuring precision alignment for conductivity and resistivity flat orientation. This holder is essential for accurate semiconductor processing.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the chuck is a general work holder for any machine tool
Work holders for machine tools are classified in heading 84.66.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Ensure the chuck holder is classified as a work holder for machine tools, not as a general vacuum device
• Provide specifications showing its design for crystal grinders
• Verify if the item qualifies for duty-free entry under trade agreements based on origin
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