Hard Rock Button Bit with Chromium Inserts from Canada
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.
Duty Rate — Canada → United States
15%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Document thread type (R32, T38) and button alloy to match statistical reporting
• Avoid bulk packaging misdeclared as parts—use individual boxing for tools