HS code · 6-digit subheading
HS Code 9017.30 – Mathematical equipment; micrometers, callipers and gauges
HS code 9017.30 is the 6-digit subheading for mathematical equipment, micrometers, callipers and gauges. It is used for digital calipers, vernier calipers, outside micrometers, inside micrometers and depth gauges.
What HS 9017.30 covers
This HS code specifically targets high-precision mathematical instruments used for exact dimensional measurement: micrometers, calipers, and gauges. These tools are indispensable in manufacturing, quality control, engineering, and scientific research, where accuracy to fractions of a millimeter or inch is critical. They are fundamental for ensuring product specifications are met, from automotive parts to aerospace components. Importers and exporters include specialized tool manufacturers, industrial equipment distributors, and companies involved in precision machining, metalworking, and quality assurance. The global trade in these instruments is driven by industrialization, the demand for higher quality standards in manufacturing, and technological advancements in measurement capabilities. Key considerations include calibration accuracy, durability, material composition, and whether they are manual or digital. These instruments are vital for maintaining consistency and precision across global supply chains.
- Covers
- Digital calipers
- Vernier calipers
- Outside micrometers
- Inside micrometers
- Depth gauges
- Feeler gauges
- Thread gauges
- Bore gauges
- Examples
- Mitutoyo Digital Caliper
- Starrett Micrometer
- Fowler Electronic Depth Gauge
- Tesa Brown & Sharpe Bore Gauge
- Sylvac Digital Indicator
Codes often confused with 9017.30
Common mistake. This code is distinct from 901720 (drawing instruments) as its primary function is precise dimensional measurement, and from 903180 (other measuring instruments) which covers a broader range of non-optical measuring devices.
Top exporters and importers of HS code 901730, 2025
In 2025, the largest exporter of HS code 901730 in UN Comtrade data was China, with 26% of world exports; the largest importer in UN Comtrade data was the United States, with 13% 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 China $184M 26% of world exports
- 2 Japan $149M 21% of world exports
- 3 United States $76M 11% of world exports
World total: $714M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $95M 13% of world imports
- 2 Germany $54M 7.4% of world imports
- 3 Netherlands $43M 5.8% of world imports
World total: $737M 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 codes for 9017.30 3
Brazil splits HS 9017.30 into 3 NCM codes, Mercosur's 8-digit tariff lines.
- 9017.30.10 MicrometersMicrômetros
- 9017.30.20 CallipersPaquímetros
- 9017.30.90 Gauges and similar measuring instrumentsOutros
All Brazil NCM codes in heading 90.17 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 9017.30
What is HS code 901730?
HS code 901730 is a 6-digit subheading in the Harmonized System that covers: Mathematical equipment; micrometers, callipers and gauges. This HS code specifically targets high-precision mathematical instruments used for exact dimensional measurement: micrometers, calipers, and gauges. These tools are indispensable in manufacturing, quality control, engineering, and scientific research, where accuracy to fractions of a millimeter or inch is critical. They are fundamental for ensuring product specifications are met, from automotive parts to aerospace components. Importers and exporters include specialized tool manufacturers, industrial equipment distributors, and companies involved in precision machining, metalworking, and quality assurance. The global trade in these instruments is driven by industrialization, the demand for higher quality standards in manufacturing, and technological advancements in measurement capabilities. Key considerations include calibration accuracy, durability, material composition, and whether they are manual or digital. These instruments are vital for maintaining consistency and precision across global supply chains.
What products fall under HS code 901730?
Digital calipers, Vernier calipers, Outside micrometers, Inside micrometers, Depth gauges, Feeler gauges, Thread gauges, Bore gauges
What are common misclassifications for HS code 901730?
This code is distinct from 901720 (drawing instruments) as its primary function is precise dimensional measurement, and from 903180 (other measuring instruments) which covers a broader range of non-optical measuring devices.
Which countries are the top exporters of goods under HS code 901730?
In 2025, the top exporters of HS code 901730 in UN Comtrade data were China ($184M, 26% of world exports), Japan ($149M) and the United States ($76M). World exports came to about $714M, 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 901730?
In 2025, the top importers of HS code 901730 in UN Comtrade data were the United States ($95M, 13% of world imports), Germany ($54M) and the Netherlands ($43M). World imports came to about $737M, 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 901730 structured?
HS code 901730 is a 6-digit subheading under the Harmonized System. The first 2 digits (90) identify the chapter, digits 3-4 (17) 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 901730?
Brazil splits HS code 901730 into 3 NCM codes: 9017.30.10 (Micrometers), 9017.30.20 (Callipers), 9017.30.90 (Gauges and similar measuring instruments). The first 6 digits of each match the HS code.