Section 15 Base metals and articles of base metal 82 Tools, implements, cutlery, spoons and forks, of base metal; parts thereof of base metal 82 07 Interchangeable tools for hand or machine-tools... 82 07 40 Tools for tapping or threading 82 07 40 00 Tools for tapping or threading Commodity Code Description 82 07 40 00 000 Tools for tapping or threading