Hard Rock Button Bit with Chromium Inserts
Threaded button bit for top hammer drills with spherical chromium-alloy buttons (>0.2% Cr) for hard rock tunneling. Fits HTS 8207.19.30.90 as other high-chromium rock drilling tool. Common in underground mining.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If standard low-alloy buttons
Absence of specified alloys moves to other rock tools.
If for machine-tool boring heads
Industrial machine-tool use changes heading.
If for retail sale as garden earth auger bit
Consumer garden tools fall under plates/strips/tools for drilling.
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Import Tips & Compliance
• Document thread type (R32, T38) and button alloy to match statistical reporting
• Avoid bulk packaging misdeclared as parts—use individual boxing for tools
Related Products under HTS 8207.19.30.90
Tungsten Mining Cross Bit
Four-wing cross bit with tungsten buttons for surface mining drills in iron ore. >0.2% W cutting part qualifies for HTS 8207.19.30.90. R32 shank.
High-Speed Steel Rock Drill Bit
A durable interchangeable rock drilling bit designed for pneumatic or hydraulic rock drills, featuring a cutting edge with high chromium content for extended wear resistance in mining operations. It falls under HTS 8207.19.30.90 due to its classification as a rock drilling tool with cutting part containing over 0.2% chromium by weight, not specified elsewhere. The bit is used in earth boring applications for tunneling and quarrying.
Tungsten Carbide Tipped Core Drill Bit
Core drill bit with tungsten carbide inserts exceeding 0.2% tungsten by weight, used for extracting cylindrical rock samples in geological surveys and mining exploration. Classified under HTS 8207.19.30.90 for its high-alloy cutting part in rock drilling tools. Ideal for hard rock formations like granite.
High Chrome Earth Auger Flight
Helical flighting with high chrome edge (>0.2% Cr) for large diameter earth augers in piling. Interchangeable for HTS 8207.19.30.90. 24-inch pitch.
Chromium Alloy Tricone Roller Bit
Tricone roller bit for rotary drilling rigs with cutting teeth containing over 0.2% chromium for abrasion resistance in oilfield and water well drilling. HTS 8207.19.30.90 applies to this earth boring tool with high chromium cutting part. Used in soft to medium rock formations.
Molybdenum-Enhanced PDC Drill Bit
Polycrystalline diamond compact (PDC) drill bit with matrix body alloyed over 0.2% molybdenum for shear cutting in directional drilling. Under HTS 8207.19.30.90 for high molybdenum rock/earth boring tool. Suited for shale gas extraction.