Optical Comparator Stage Fixture
Adjustable fixture for securing workpieces on optical comparator stages used in profile projection and inspection. HTS 9031.90.91 covers it as an accessory for profile projectors and other checking machines.
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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 part of a complete optical profile projector machine
Profile projectors themselves are in 9031.41; dedicated parts stay with the machine heading.
If for work holding fixtures on machine tools
Machine tool work holders excluded by Chapter 90 note 1(g) and classified in 8466.
If simple steel fabricated holders without precision features
Basic metal articles of general use classify by material in Chapter 73, per note 1(f).
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Import Tips & Compliance
• Include photos or diagrams showing metrological application to distinguish from general tooling
• Certify fixtures meet precision standards (e.g
• +/-0.001 inch repeatability) for customs verification
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