Product classification
HS code for Dividing head: 8466.30
Parts & accessories suited for use solely/principally with machines of headings 8456-8465, dividing heads and other special attachments for machines.
Classification of dividing head under HS 8466.30
The dividing head is classified under HS code 8466.30, which specifically covers dividing heads and other special attachments for machine tools. This classification is determined by the General Rules for the Interpretation (GRI) of the Harmonized System, specifically GRI 1, as the heading text for 8466 explicitly mentions these devices. Dividing heads are precision mechanical tools used to rotate a workpiece to specific angles or to divide a circle into equal parts, typically used in conjunction with milling machines, grinders, or drill presses. Because they are designed to enhance the functionality of machine tools falling under headings 84.56 to 84.65, they are grouped within the parts and accessories category of Chapter 84. The classification remains consistent regardless of whether the dividing head is manual, optical, or electronically controlled, provided it functions as a machine tool attachment.
- Covers
- Universal dividing heads
- Optical indexing heads
- Mechanical dividing heads for milling machines
- Semi-universal dividing heads
- Spiral milling attachments
- Rotary tables used as dividing heads
- Also under 8466.30
- Haas Rotary Tables
- Tsudakoma Rotary Tables
- Yuasa Dividing Heads
- Vertex Dividing Heads
- Hardinge Indexing Heads
Codes often confused with 8466.30
Common mistake. Dividing heads are frequently misclassified under HS code 8466.93, which is a general category for parts and accessories for machines of heading 84.56 to 84.61. However, since 8466.30 specifically names "dividing heads," it takes precedence over the more general parts category. Another common error is classifying them under 9031.80 as measuring or checking instruments. While dividing heads are high-precision tools, their primary function is to hold and position a workpiece for machining, not merely to measure it, thus excluding them from Chapter 90.
Top exporters and importers of HS 846630 (the code used for dividing head), 2025
In 2025, the largest exporter of HS 846630 (the code used for dividing head) 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.
Figures cover everything classified under HS 846630, not only dividing head.
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 dividing head
Brazil classifies dividing head under NCM 8466.30.00: HS 8466.30 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about dividing head
What is the HS code for Dividing head?
The HS code for Dividing head is 846630 (Parts & accessories suited for use solely/principally with machines of headings 8456-8465; dividing heads and other special attachments for machines). The HS code for a dividing head is 8466.30, which covers dividing heads and other special attachments for machine tools.
How do I classify Dividing head for customs?
Dividing head is classified under HS code 846630 — Parts & accessories suited for use solely/principally with machines of headings 8456-8465; dividing heads and other special attachments for machines. This is a 6-digit subheading level code.
Can a rotary table be classified under 8466.30?
Yes, if the rotary table is designed specifically as a dividing attachment for a machine tool to index workpieces, it is classified under 8466.30.
Which countries are the top exporters of dividing head (HS 846630)?
In 2025, the top exporters of HS 846630 (the code used for dividing head) 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 dividing head (HS 846630)?
In 2025, the top importers of HS 846630 (the code used for dividing head) 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.
Is the HS code for Dividing head the same in all countries?
The base HS code 846630 for Dividing head is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for dividing head in Brazil?
In Brazil, dividing head (HS 846630) is classified under NCM 8466.30.00.