Semiconductor Crystal Grinder Diamond Dresser from Japan
Single-crystal diamond dresser tool for truing and dressing grinding wheels in semiconductor boule grinders. Ensures consistent wheel profile for precise flat grinding. Replacement part for wafer preparation grinders in 8442.40.00.00.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Document diamond size (typically 1-3 carats) and mounting shank dimensions
• Classify as complete dresser assemblies, not loose diamonds, to maintain machinery part status
• Watch for re-export requirements if used in high-security semiconductor facilities