U.S. imports of numerically controlled boring-milling machines for metal removal (HS 845931) totaled $8.9M in July 2026, traded with 11 countries.
Importers of Numerically Controlled Boring-Milling Machines for Metal Removal paid $1.2M in duties in July 2026 — an effective duty rate of 14% on $8.6M in dutiable value, based on actual customs collections rather than the published tariff schedule. Numerically Controlled Boring-Milling Machines for Metal Removal imports of $8.9M in July 2026 ran 14% below the year-to-date monthly average of $10.3M.
Last updated: July 2026 dataNumerically controlled boring-milling machines occupy a premium tier of the metalworking equipment market, serving aerospace, energy, and heavy-equipment manufacturers that require simultaneous boring and milling in a single setup. Italy and Switzerland lead US supply under this heading, reflecting the European precision-machine-tool industry's dominance in high-tolerance horizontal spindle equipment. The US schedule distinguishes horizontal-spindle table-type machines (8459310010), other horizontal-spindle configurations (8459310040), non-horizontal-spindle new machines (8459310070), and used or rebuilt units (8459310005). Buyers should verify spindle orientation and table configuration carefully, as misclassification between these lines is a common audit finding.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
26 shipments/mo
Table-type machines feature a workpiece table that moves in multiple axes relative to a fixed or traversing spindle head, enabling precise positioning of large workpieces. Non-table-type horizontal-spindle machines use different workpiece-holding or column arrangements. The distinction directly determines which 10-digit HTS line applies — 8459310010 for table-type versus 8459310040 for other horizontal-spindle configurations — so machine specifications and manufacturer documentation are essential at entry.
Both countries host long-established precision machine-tool clusters — Italy's Lombardy and Piedmont regions and Switzerland's industrial corridor — that specialize in large-format, high-tolerance boring-milling centers. Their machines are widely specified by aerospace and heavy-industry buyers who prioritize accuracy and after-sales support over unit price, sustaining strong import volumes despite premium pricing.
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HSChapter 84
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 8459310070 | Bor-Mil Mac,Exc Horiz Spin,Mtl Remov,N/C,New,NESOI | $5.6M | 14.01% | 100.00% | $790K |
| 8459310040 | Bor-Mil Mac,Horiz Spn,Ex Tbl Typ,Mtl Remov,N/C,New | $1.9M | 13.44% | 99.46% | $250K |
| 8459310010 | Bor-Mil Mac,Horiz Spin,Table Typ,Mtl Remov,N/C,New | $753K | 7.58% | 67.74% | $57K |
| 8459310005 | Comb Boring-Milling Mach, Metal Remov, N/C, Used | $611K | 14.20% | 100.00% | $87K |
ImportsExports
Imports
$8.9MYoY · Pro
Exports
$0YoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Imports · July 2026
origin
Italy and Switzerland together supply 73% of it.
customs district
destination
entry
rate provision · imports
0.1% enters free of duty; the effective duty rate is 13.36%.