HS code · 6-digit subheading
HS Code 8466.30 – Parts & accessories suited for use solely/principally with machines of headings 8456-8465; dividing heads and other special attachments for machines
HS code 8466.30 is the 6-digit subheading for parts & accessories suited for use solely/principally with machines of headings 8456-8465, dividing heads and other special attachments for machines. It is used for dividing heads, precision rotary tables, angle plates, tailstocks for dividing heads and grinding attachments.
What HS 8466.30 covers
This HS code specifically identifies dividing heads and other special attachments designed for use with machine tools under headings 8456-8465. These specialized accessories significantly extend the capabilities and versatility of standard machine tools, enabling them to perform complex and precise operations that would otherwise be impossible. Dividing heads, for instance, are essential for angular indexing, allowing for the machining of gears, splines, and multi-sided components with high accuracy. Other special attachments can include grinding, slotting, or tapping units that transform a general-purpose machine into a specialized one. Trade in these items is driven by industries requiring high precision and custom manufacturing, such as aerospace, medical device production, and tool & die making. Key considerations for importers and exporters include the attachment's precision, compatibility with specific machine models, and its ability to enhance productivity for niche applications.
- Covers
- Dividing heads
- Precision rotary tables
- Angle plates
- Tailstocks for dividing heads
- Grinding attachments
- Slotting attachments
- Tapping attachments
- Universal indexing heads
- Examples
- Haas Rotary Tables
- Tsudakoma Rotary Tables
- Yuasa Dividing Heads
- Vertex Dividing Heads
- Hardinge Indexing Heads
Codes often confused with 8466.30
Common mistake. Can be confused with 846620 (work holders) if the attachment also holds the workpiece, or with 846693 (other parts) if its specialized function isn't immediately clear.
Top exporters and importers of HS code 846630, 2025
In 2025, the largest exporter of HS code 846630 in UN Comtrade data was Germany, with 13% of world exports; the largest importer in UN Comtrade data was India, with 28% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Top exporters 2025 · share of world exports
- 1 Germany $106M 13% of world exports
- 2 United States $103M 12% of world exports
- 3 Japan $101M 12% of world exports
World total: $833M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 India $243M 28% of world imports
- 2 China $121M 14% of world imports
- 3 United States $92M 11% of world imports
World total: $864M Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries that did not report are estimated from what other countries recorded trading with them. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM code for 8466.30
Brazil does not split HS 8466.30: its NCM code is 8466.30.00.
All Brazil NCM codes in heading 84.66 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 8466.30
What is HS code 846630?
HS code 846630 is a 6-digit subheading in the Harmonized System that covers: Parts & accessories suited for use solely/principally with machines of headings 8456-8465; dividing heads and other special attachments for machines. This HS code specifically identifies dividing heads and other special attachments designed for use with machine tools under headings 8456-8465. These specialized accessories significantly extend the capabilities and versatility of standard machine tools, enabling them to perform complex and precise operations that would otherwise be impossible. Dividing heads, for instance, are essential for angular indexing, allowing for the machining of gears, splines, and multi-sided components with high accuracy. Other special attachments can include grinding, slotting, or tapping units that transform a general-purpose machine into a specialized one. Trade in these items is driven by industries requiring high precision and custom manufacturing, such as aerospace, medical device production, and tool & die making. Key considerations for importers and exporters include the attachment's precision, compatibility with specific machine models, and its ability to enhance productivity for niche applications.
What products fall under HS code 846630?
Dividing heads, precision rotary tables, angle plates, tailstocks for dividing heads, grinding attachments, slotting attachments, tapping attachments, universal indexing heads
What are common misclassifications for HS code 846630?
Can be confused with 846620 (work holders) if the attachment also holds the workpiece, or with 846693 (other parts) if its specialized function isn't immediately clear.
Which countries are the top exporters of goods under HS code 846630?
In 2025, the top exporters of HS code 846630 in UN Comtrade data were Germany ($106M, 13% of world exports), the United States ($103M) and Japan ($101M). World exports came to about $833M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of goods under HS code 846630?
In 2025, the top importers of HS code 846630 in UN Comtrade data were India ($243M, 28% of world imports), China ($121M) and the United States ($92M). World imports came to about $864M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
How is HS code 846630 structured?
HS code 846630 is a 6-digit subheading under the Harmonized System. The first 2 digits (84) identify the chapter, digits 3-4 (66) identify the heading, and digits 5-6 (30) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 846630?
In Brazil, HS code 846630 is NCM 8466.30.00. The last two digits are 00 because Brazil does not split this HS code further.