Hydraulic Crystal Boule Grinder Chuck from Japan
Hydraulic chuck part for holding crystal boules during grinding to exact diameters in semiconductor wafer prep equipment, classified as a hydraulic hand tool part under HTS 8467.99.0190.
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
• Include material certificates showing compatibility with silicon/gallium arsenide; declare hydraulic pressure ratings accurately; avoid misclassification as general machinery parts