Crystal Boule Grinder Collet Chuck from Germany
Adjustable collet chuck attachment that mounts on crystal grinders (heading 8429 equipment) to securely hold semiconductor boules during diameter grinding and flat notching for wafer preparation. Made of hardened steel or carbide. Classified in 8431.49.9020 as other machinery mounting attachment.
Duty Rate — Germany → United States
15%
Rate breakdown
9903.82.2215%Derivative steel articles the product of Argentina, Ecuador, El Salvador, Guatemala, Japan, the Republic of Korea, Liechtenstein, Switzerland, Taiwan, the United Kingdom, or a member nation of the European Union, as provided for in subdivision (c)(xi) of U.S. note 16 to this subchapter
9903.05.900%Articles of aluminum, of steel or of copper or derivative aluminum or steel articles; passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; medium- and heavy-duty vehicles; parts of medium- and heavy-duty vehicles; wood products; patented pharmaceutical articles; and semiconductor articles, as provided in subdivision (f) of U.S. note 52 to this subchapter
Import Tips
• Include grind tolerance specs (±0.01mm) in invoices to prove semiconductor precision
• Pair with boule grinder photos/install diagrams for smooth customs clearance