Keratometer Measurement Head from Mexico
Precision optical attachment measuring corneal curvature for contact lens fitting. Classifies under HTS 9018.90.20.00 as optical appliance part for sight-testing. Provides dioptric measurements of corneal astigmatism.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Calibrate against NIST-traceable standards before import declaration
• Declare as medical device part with principal use documentation
• Avoid describing as 'industrial optical gauge' to prevent Chapter 90 shift