Analysis
Subheading 9017.30 covers micrometers, calipers and gauges, within heading 9017. The first six digits are shared by every country that uses the Harmonized System, so this part of the code is the same in the US, UK and EU schedules; the 2 US tariff lines below it are national.
None of its 2 lines is duty-free at the general rate. Rates run from 3.9% to 5.8% with a median of 4.85%, so the line you choose sets the duty.
The US splits it as follows: 9017.30.40 for micrometers and calipers (5.8%) and 9017.30.80 for micrometers, calipers and gauges: other (3.9%).
By Census's concordance, most of its statistical lines are made by Saw Blade and Handtool Manufacturing (332216). Those are the NAICS industries a US producer of these goods would report under.
Goods only reach 9017.30 once they fall within heading 9017 (drawing, marking-out or mathematical calculating instruments (for example, drafting…). Under General Rule 6, subheadings are then compared only with others at the same level, so a product is matched against its siblings, not against lines elsewhere in the chapter.
Tariff lines
| Line | Description | General rate |
|---|---|---|
| 9017.30.40 | Micrometers and calipers | 5.8% |
| 9017.30.80 | Micrometers, calipers and gauges: other | 3.9% |