U.S. imports of Work Holders for Machine Tools (SITC 73513) totaled $35.3M in August 2026, imported from 52 countries.
Importers of Work Holders for Machine Tools paid $3.9M in duties in August 2026, an average duty rate of 11.10% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 2026 dataWork holders — including chucks, collets, vises, fixtures, and magnetic chucks — secure workpieces during machining and are critical determinants of part accuracy and repeatability on lathes, mills, and grinding machines. Unlike tool holders, which grip the cutting tool, work holders grip the part being machined, and the distinction matters for correct classification. Precision work-holding equipment is a high-value segment of the machine-tool accessories market, with demand driven by aerospace, medical-device, and automotive precision-machining operations.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
2.1K import shipments a month
Work holders (73513) grip the workpiece being machined — examples include lathe chucks, collets, vises, and magnetic chucks. Tool holders (73511) grip the cutting tool. The distinction is functional: if the item holds the part, it is a work holder; if it holds the cutter, it is a tool holder. Misclassifying between these two headings is a common error on entry documents for machine-tool accessories.
Work holders sourced from certain countries — particularly China — may be subject to Section 301 tariffs. Antidumping orders have historically covered some categories of precision chucks and vises. Importers should check current CBP and USTR guidance for the applicable HTS subheading and country of origin before finalizing sourcing decisions.
Basic heading 267 of 642 in section 7
Basic heading 73513 · $35.3M of $172.0B
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Imports · August 2026
origin
Germany and Japan together supply 47% of it. China pays 40.2% duty; Canada 0.5%.
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.
ImportsExports
Imports
$35.3MYoY · free account
Exports
$25.7MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $404.6M of Work Holders for Machine Tools.
Through August 2026 · exports 10 of 12 months reported. Source: U.S. Census Bureau.