Chucks
Chucks for machine tools and special attachments
HSN 8466 30 10 (chucks — dividing heads and other special attachments for machine tools) is not covered by a Bureau of Indian Standards Quality Control Order and carries no Partner Government Agency clearance requirement at the tariff-line level. Import follows the standard customs procedure: Importer-Exporter Code (IEC), bill of entry, commercial invoice, packing list. Other parts and accessories under Heading 8466 — particularly those principally associated with specific machine categories under Headings 8456 to 8465 — may be assessed differently on examination, making classification accuracy the principal importer risk.
Chucks classified here must be solely or principally suited for machine tools within Headings 8456 to 8465; a chuck presented as a general-purpose workholding device or as a component of a different machine category may be re-classified by customs to an alternative heading in Chapter 84, triggering retrospective duty recovery and potential detention. Verify that product specifications, catalogues, and end-use declarations consistently confirm compatibility with the relevant machine tools before relying on the absence of compliance at this tariff line.