Diamond Core Bit Crown Replacement from Japan
Replaceable diamond core bit crown with tungsten carbide matrix (over 0.2% tungsten) for field re-tipping of worn bits. Classified under HTS 8207.19.30.60 as core bit components with specified alloys. Extends bit life in remote drilling sites.
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
• Classify as complete crowns, not parts, when ready for bit attachment
• Include compatibility specs for major bit shanks
• Material certs for tungsten content verification