Crystal Boule Grinder Diamond Wheel Arbor from Canada
The diamond wheel arbor holds grinding wheels that shape semiconductor crystal boules to precise wafer diameters. Classified in HTS 8479.90.95.65 as parts of metal treating grinders for semiconductor preparation.
Duty Rate — Canada → United States
15%
Rate breakdown
9903.82.1015%Except as provided for in headings 9903.82.12, 9903.82.17 and 9903.85.68, derivative aluminum and steel articles with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 15 percent, as provided for in subdivision (f) of U.S. note 16 to this subchapter
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Document arbor balance specifications for high-RPM crystal grinding operations
• Provide flat-grinding pattern certifications matching semiconductor industry standards
• Include photos showing orientation flats for conductivity type indication