Crystal Boule Grinder Workholding Chuck from Canada
Precision workholding chuck for securing semiconductor crystal boules during diameter grinding to wafer specifications. This mechanical part ensures accurate rotation without electrical components. Under 8487.90.00 for unspecified semiconductor grinding machinery parts.
Duty Rate — Canada → United States
13.9%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Provide engineering drawings showing mechanical-only design
• Confirm compatibility only with boule grinders for semiconductor crystals
• Pitfall: classification as general machine tool part under 8466