TourAxiom/US Federal/Statutes/Hts/§ 7228.80.00.00HTS 7228.80.00.00∀4 rulesOfficial sourcegraph ↗build calculator ↗citeHollow drill bars and rods Unit of quantity: kg Rates of duty (1-General): Free Rates of duty (2): 30%← HTS 7228.70.60.00HTS 7229 →