Air Rotary Water Well Drill Head Assembly from Japan
Modular rotary head with hammer drill bit for air rotary water well drilling systems, mounted on various rigs. Classified in HTS 8430.49.8040 as other water well boring machinery components. Uses compressed air for efficient cuttings removal.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Specify air pressure PSI and bit diameter for water well verification; avoid general mining bit classification; compatibility list with well rigs