Other
Interchangeable tools for handtools, whether or not power operated, or for machine-tools (for example, for pressing, stamping, punching, tapping, threading, drilling, boring, broaching, milling, turning or screwdriving), including dies for drawing or extruding metal, and rock drilling or earth boring tools; base metal parts thereof: > Rock drilling or earth boring tools, and parts thereof: > Other, including parts: > Other > Other: > Rotary rock drill bits, core bits and reamers: > Other
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 8207.19.60.70
7-Inch Hybrid Core Bit
Hybrid bit combining PDC and diamond impregnation for directional rock coring in HDD applications. Falls under HTS 8207.19.60.70 as other rotary core bits for rock. Balances steerability and penetration rate.
11-Inch Exploration Reamer
Heavy-duty reamer for mineral exploration hole enlargement in diamond drilling programs. HTS 8207.19.60.70 for other rotary rock reamers. Carbide-reinforced wings prevent deviation.
5-Inch Water Well Rock Bit
Button bit for rotary drilling through overburden into bedrock for water wells. Classified HTS 8207.19.60.70 as rotary rock core bit. Air-cooled design for deep hole stability.
13-Inch Blast Hole Reamer
Large diameter reamer for final sizing blast holes in quarry operations. HTS 8207.19.60.70 other rotary rock reamers. Eccentric design for overgauge drilling.
12-Inch Diamond Impregnated Core Bit
A rotary core bit with diamond-impregnated segments designed for drilling into hard rock formations like granite or basalt. It falls under HTS 8207.19.60.70 as an other rotary rock drill bit used in geological exploration and mining. The bit attaches to core drilling rigs for extracting cylindrical rock samples.
8.5-Inch PDC Reamer for Hard Rock
A polycrystalline diamond compact (PDC) reamer used to enlarge holes in hard rock during oil and gas exploration drilling. Classified under HTS 8207.19.60.70 as an other rotary rock drill reamer, not core bits. It features PDC cutters for improved durability in abrasive rock environments.
6-Inch Matrix Core Bit for Mining
Matrix body core bit with tungsten carbide inserts for continuous mining operations in underground coal or hard rock tunnels. It qualifies for HTS 8207.19.60.70 as a rotary rock drill core bit, other than those for earth boring. Designed for high-impact resistance in harsh mining conditions.
10-Inch Tapered Rock Reamer
Tapered button bit reamer for enlarging blast holes in open-pit mining operations on hard rock faces. Falls under HTS 8207.19.60.70 as other rotary rock drill reamers. Features tungsten carbide buttons for percussion-rotary hybrid use.
4-Inch Impreg Bit for Geological Survey
Surface-set impregnated diamond bit for shallow geological sampling in exploration drilling. Classified in HTS 8207.19.60.70 as other rotary core bits for rock drilling. Optimized for consistent penetration in varied rock types.
9-Inch Step Reamer for Tunnel Boring
Multi-step PDC reamer for enlarging pilot holes in tunnel boring machine operations through rock. HTS 8207.19.60.70 covers this as other rotary rock reamers. Provides staged diameter expansion for precise tunnel alignment.