8.5 Inch Tricone Rock Drill Bit from Japan
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.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Specify IADC code and formation type on invoices to demonstrate rock drilling purpose
• Test reports for tungsten carbide insert composition required for subheading
• Separate from water well bits which may have different oilfield classifications