U.S. imports of Non-Numerically Controlled Tool & Cutter Sharpening Machines (SITC 73166) totaled $1.8M in August 2026, imported from 23 countries.
Importers of Non-Numerically Controlled Tool & Cutter Sharpening Machines paid $265K in duties in August 2026, an average duty rate of 15.94% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 2026 dataManually operated tool and cutter grinding machines — used to resharpen drills, milling cutters, and similar tooling without programmable axis control — serve small machine shops, maintenance departments, and toolrooms where throughput requirements do not justify CNC investment. The absence of numerical control is the defining classification criterion separating this heading from SITC 73165. These machines are often compact bench-top or floor-standing units, and their relatively lower unit value compared to CNC equivalents makes duty rate and origin accuracy especially important for cost management.
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94 import shipments a month
Yes. Motorized or power-assisted feed mechanisms do not constitute numerical control. The machine must execute a stored numerical program governing axis positions to qualify as numerically controlled. A motorized wheel feed with manual workhead positioning remains a non-NC machine for classification purposes.
Standard metalworking machine tools do not require end-use certificates for most origins. However, if the machine has dual-use potential under Export Administration Regulations (EAR) — for example, if it meets certain precision thresholds relevant to controlled manufacturing — the importer should verify whether any import or re-export considerations apply, particularly for machines with very high accuracy specifications.
Basic heading 73166 · $1.8M of $172.0B
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ImportsExports
Imports
$1.8MYoY · free account
Exports
$470KYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $22.4M of Non-Numerically Controlled Tool & Cutter Sharpening Machines.
Through August 2026 · exports 10 of 12 months reported. Source: U.S. Census Bureau.
Imports · August 2026
origin
China pays 35.6% duty; Poland 10.0%.
customs district
Census does not publish district detail for this classification system.
destination
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.