Crystal Boule Grinder Workholding Chuck from Germany
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 — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
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