Tungsten Carbide Matrix Core Reamer
A heavy-duty core reamer with tungsten carbide matrix body (over 0.2% tungsten) for enlarging pilot holes in hard rock tunneling projects. HTS 8207.19.30.60 applies due to its reamer design for rock boring with high-alloy cutting parts. Used in underground mining and civil engineering.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If standard steel body construction
Reamers without elevated chromium, molybdenum, tungsten, or vanadium in cutting parts use the general 'other' rock tool classification.
If configured for machine tool boring operations
Interchangeable reamers primarily for metalworking machine tools (not rock) fall under heading 8208 for other interchangeable tools.
If sold as complete boring head assembly
Reamer heads permanently attached to other drilling components become parts of drilling machines under Chapter 84.
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Import Tips & Compliance
• Obtain material test reports certifying tungsten content to support the 8207.19.30 subheading
• Distinguish from milling cutters by emphasizing rock boring end-use in import declarations
• Watch for valuation issues when imported with drilling rods
Related Products under HTS 8207.19.30.60
Impreg Diamond Rotary Rock Drill Bit
A rotary rock drill bit featuring impregnated synthetic diamonds in a tungsten carbide matrix for hard rock drilling in mining operations. It falls under HTS 8207.19.30.60 due to its classification as a rotary rock drill bit with cutting edges containing over 0.2% tungsten by weight. Designed for high-penetration rates in abrasive formations like quartzite.
11-1/4 Inch NQ Core Drill Bit
An NQ-size surface set diamond core bit with 11-1/4 inch diameter for geological core sampling in exploration drilling. Classified under HTS 8207.19.30.60 as a core bit with tungsten carbide gauge protection exceeding 0.2% tungsten content. Ideal for medium-hard rock formations in mineral prospecting.
PDC Rotary Drag Bit for Hard Rock
Polycrystalline diamond compact (PDC) rotary drag bit with tungsten carbide backing for directional hard rock drilling in oilfield applications. Falls under HTS 8207.19.30.60 for rotary rock drill bits with over 0.2% tungsten content. Features multiple PDC cutters for enhanced durability.
8.5 Inch Tricone Rock Drill Bit
Tungsten carbide insert tricone rock drill bit (8-5 inches) with sealed bearings for rotary drilling in construction pile foundations. HTS 8207.19.30.60 due to high tungsten content in inserts exceeding 0.2% by weight. Suitable for soft to medium-hard formations.
HQ Diamond Impregnated Core Bit
HQ-size (3-7/8 inch) diamond impregnated core bit with tungsten carbide matrix for wireline coring in mineral exploration. Classified HTS 8207.19.30.60 for core bits with tungsten content over 0.2%. Optimized for fractured hard rock recovery.
Indexable Insert Rock Reamer
Heavy-duty rock reamer with indexable tungsten carbide inserts (over 0.2% tungsten) for enlarging blast holes in quarry operations. HTS 8207.19.30.60 as a reamer for earth boring with specified alloy content. Features quick-change insert system.