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SITCSection 6
U.S. imports of tools for rock drilling or earth boring (SITC 69563) totaled $35.9M in April 2026, traded with 39 countries.
Importers of Tools for Rock Drilling or Earth Boring paid $4.3M in duties in April 2026 — an effective duty rate of 16% on $26.8M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataDrill bits and cutting tools engineered for rock drilling and earth boring — including rotary tricone bits, PDC (polycrystalline diamond compact) bits, and down-the-hole hammer bits — are essential capital inputs for oil and gas exploration, mining, water-well drilling, and geotechnical construction. Performance specifications such as bit diameter, cutting structure material, and pressure rating drive procurement decisions far more than country of origin in most sourcing contexts. The high engineering content and unit value of these tools mean that misclassification between drilling tools and related downhole equipment parts can have material duty implications.
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PDC bits are classified as tools for rock drilling or earth boring based on their function, regardless of the diamond cutting element. The cutting material — whether steel, carbide, or diamond compact — does not move the article out of this functional category, though it may affect the specific tariff line at the HTS 10-digit level.
Technical datasheets specifying the bit's design for rock or earth formation cutting, along with commercial invoices describing the article as a drill bit or boring tool, are the standard supporting documents. If the article could plausibly be classified as a part of drilling machinery, a binding ruling request to CBP can provide classification certainty before large-volume importation.
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Monthly import values over time