Underreamer Tool
Expandable cutting tool used to enlarge wellbore diameter below the main hole in oil/gas drilling operations. Covered under HTS 8430.49.8020 as other boring machinery for gas field applications.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported solely as interchangeable cutting blades
Rock drilling cutters classified as interchangeable tools in Chapter 82.
If for underreamer components without actuation systems
Incomplete boring tools treated as parts under 8431.
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Import Tips & Compliance
• Document cutter size range and expansion mechanism; comply with API cutter hardness specs; clearly mark as complete operational units
Related Products under HTS 8430.49.80.20
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Fishing Magnet Assembly
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