Product classification
HS code for CNC cutter grinder: 8460.31
Machine-tools, sharpening (tool or cutter grinding) machines, numerically controlled.
Classification of CNC cutter grinder under HS 8460.31
CNC cutter grinders are classified under HS code 8460.31. This classification is designated for machine tools used for sharpening, tool, or cutter grinding that are numerically controlled. The Harmonized System distinguishes between machines that remove metal to shape a part (like lathes or mills) and those that finish or sharpen existing tools. Since a cutter grinder's primary function is the maintenance or precision finishing of cutting edges on tools like end mills, drills, and hobs, it is placed under heading 8460. The "numerically controlled" specification ensures it is categorized under the .31 subheading rather than the .39 subheading for manual machines. These machines utilize abrasive wheels to remove minute amounts of material to achieve extreme sharpness and specific tool geometries. The CNC capability allows for the complex multi-axis movements required to grind helical flutes and relief angles on modern industrial cutting tools. This classification applies regardless of whether the machine is used for manufacturing new tools or re-sharpening used ones, provided the process is abrasive grinding.
- Covers
- CNC end mill grinders
- CNC drill bit sharpening machines
- CNC universal tool and cutter grinders
- CNC hob sharpening machines
- CNC broach grinding machines
- Also under 8460.31
- ANCA MX7
- Walter Helitronic Power
- Rollomatic GrindSmart 629XS
- Schneeberger Aries
- Saacke UWIIF
Codes often confused with 8460.31
Common mistake. A common error is classifying these under 8460.12 or 8460.22. Code 8460.12 is reserved for flat-surface grinding machines, while 8460.22 is for cylindrical grinding machines. While a cutter grinder may perform cylindrical movements, its specific purpose for "tool or cutter" sharpening takes precedence under the specific provision of 8460.31.
Top exporters and importers of HS 846031 (the code used for CNC cutter grinder), 2025
In 2025, the largest exporter of HS 846031 (the code used for CNC cutter grinder) in UN Comtrade data was Thailand, with 19% of world exports; the largest importer in UN Comtrade data was China, with 32% 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 846031, not only CNC cutter grinder.
Top exporters 2025 · share of world exports
- 1 Thailand $58M 19% of world exports
- 2 Germany $52M 17% of world exports
- 3 Switzerland $49M 16% of world exports
World total: $304M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 China $117M 32% of world imports
- 2 United States $44M 12% of world imports
- 3 Germany $21M 5.7% of world imports
World total: $363M 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 CNC cutter grinder
Brazil classifies CNC cutter grinder under NCM 8460.31.00: HS 8460.31 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about CNC cutter grinder
What is the HS code for CNC cutter grinder?
The HS code for CNC cutter grinder is 846031 (Machine-tools; sharpening (tool or cutter grinding) machines, numerically controlled). The HS code for a numerically controlled CNC cutter grinder is 8460.31.
How do I classify CNC cutter grinder for customs?
CNC cutter grinder is classified under HS code 846031 — Machine-tools; sharpening (tool or cutter grinding) machines, numerically controlled. This is a 6-digit subheading level code.
Can this code be used for manual tool sharpeners?
No, manual or non-numerically controlled tool and cutter grinders are classified under HS code 8460.39. The 8460.31 code is strictly for CNC-equipped models.
Which countries are the top exporters of CNC cutter grinder (HS 846031)?
In 2025, the top exporters of HS 846031 (the code used for CNC cutter grinder) in UN Comtrade data were Thailand ($58M, 19% of world exports), Germany ($52M) and Switzerland ($49M). World exports came to about $304M, 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 CNC cutter grinder (HS 846031)?
In 2025, the top importers of HS 846031 (the code used for CNC cutter grinder) in UN Comtrade data were China ($117M, 32% of world imports), the United States ($44M) and Germany ($21M). World imports came to about $363M, 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 CNC cutter grinder the same in all countries?
The base HS code 846031 for CNC cutter grinder 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 CNC cutter grinder in Brazil?
In Brazil, CNC cutter grinder (HS 846031) is classified under NCM 8460.31.00.