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Crystal Boule Grinder Workholding Chuck from Japan

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 — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

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

Crystal Boule Grinder Workholding Chuck from Japan — Import Duty Rate | HTS 8487.90.00