Slide Rule Log-Log Engineering Calculator from Mexico
A bamboo and metal slide rule with logarithmic scales for complex engineering calculations like multiplication, division, and trigonometry. Falls under HTS 9017.20.80 as a mathematical calculating instrument, distinct from electronic calculators. Used by aerospace engineers for rapid computations without batteries.
Duty Rate — Mexico → United States
14.6%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Include historical/technical literature proving mechanical calculation function to distinguish from novelties
• Declare cursor and scale materials separately if over certain value thresholds trigger additional metallurgical declarations
• Avoid misdeclaration as 'office supplies' which would shift to Chapter 96; emphasize engineering precision scales