Diamond Core Bit Crown Replacement
The diamond core bit crown replacement is a replaceable crown with a tungsten carbide matrix exceeding 0.2% tungsten for field re-tipping of worn bits. It extends bit life in drilling operations and is designed for easy installation. This product falls under tariff item 8207.19.00 as a part of an interchangeable rock drilling tool.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the crown is made of cermets
Parts with cermet working surfaces are classified under this subheading.
If imported as a part of a core drilling machine
Parts of drilling machinery may be classified in Chapter 84.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Document the tungsten carbide matrix content and provide installation instructions for customs classification
• Verify if the product qualifies for preferential treatment under a free trade agreement with the country of origin
• Keep the crown size and compatibility details available for CBSA inspection
Related Products under Tariff item 8207.19.00
11-1/4 Inch NQ Core Drill Bit
The 11-1/4 inch NQ core drill bit is a surface set diamond core bit for geological core sampling in exploration drilling. It features tungsten carbide gauge protection exceeding 0.2% tungsten, ensuring durability in abrasive formations. This product falls under tariff item 8207.19.00 as an interchangeable rock drilling tool.
12-1/4 Inch Sealed Bearing Tricone Bit
The 12-1/4 inch sealed bearing tricone bit features TCI (tungsten carbide insert) teeth for geothermal drilling in volcanic rock. Its tungsten content exceeds 0.2% by weight, and it is formulated with high-temperature grease for extreme conditions. This bit is classified under tariff item 8207.19.00 as an interchangeable rock drilling tool.
8.5 Inch Tricone Rock Drill Bit
The 8.5 inch tricone rock drill bit is a tungsten carbide insert bit with sealed bearings for rotary drilling in construction pile foundations. Its tungsten content in the inserts exceeds 0.2% by weight, providing excellent wear resistance. This product falls under tariff item 8207.19.00 as an interchangeable rock drilling tool.
9-7/8 Inch PDC Core Bit
The 9-7/8 inch PDC core bit features reinforced tungsten carbide gauge rings for oilfield coring in hard formations. Its tungsten content exceeds 0.2% by weight, and it is designed with optimized hydraulics for efficient chip removal. This bit is classified under tariff item 8207.19.00 as an interchangeable rock drilling tool.
Atlas Copco Cop 1838 Rock Drill Bit
This percussion rock drill bit is designed for use in Atlas Copco COP 1838 shank adapters, primarily in surface and underground mining operations. It features a high-performance carbide insert with cutting edges containing over 0.2% of alloying elements, which qualifies it as a rock drilling tool under tariff item 8207.19.00. The bit is an interchangeable tool for hand tools or machine-tools, specifically engineered for percussive drilling in hard rock formations.
Boart Longyear NF1806QL Percussion Bit
This 45mm diameter percussion drill bit is designed for underground drilling with a QL shank system. The spherical carbide buttons contain molybdenum over 0.2% by weight, providing impact resistance in fractured rock. As an interchangeable tool for rock drilling, it falls under tariff item 8207.19.00 for other rock drilling or earth boring tools.