Carbide Coolant Thru Drills
Our solid carbide coolant-through drills are engineered for ultra-deep hole machining up to 30×D, delivering excellent chip evacuation and thermal control.
With double margin design for superior hole straightness and stability, and coating options ranging from TiSiN to premium Balzers coatings, these drills ensure long tool life and consistent performance in demanding applications.
Key Features
- Ultra-Deep Drilling Capability
- Internal Coolant Channels
- Double Margin Design
- Premium Solid Carbide Substrate
- Advanced Coating Options
Customized geometries and coatings are available for challenging materials and special applications.

Tell us what you need. We’ll make it happen.
Once we receive your inquiry, our sales team will review your requirements and provide a detailed quotation within 8 hours.
- Email: sales@ky-tools.com
- Whatsapp: +86 19916648431
Real Images from Real Source Factory.
- Longest to 400mm overall length
- Polished groove helping chip evacuation
- Double Margin Design
More Information
| Coating | TiSiN/TiALN, Swiss Balzers coating options available |
| Coolant Through | coolant inside |
| Drilling Depth | 3xD, 5xD, 7xD, 8xD, 10xD, 15xD, 20xD, 25xD up to 400mm overall length |
| Material | Tungsten carbide |
| Point Angle | 130°/140°/customized angle available |
| Shank | Straight |
| Shank Tolerance | h6 |
| Cutter Tolerance | from -0.01mm to 0mm |
Quotation & Order Confirmation
Once we receive your inquiry, our sales team will review your requirements and provide a detailed quotation within 8 hours. After the quotation is confirmed, we will issue a Proforma Invoice (PI) for payment arrangement. Upon completion of production and prior to shipment, a Commercial Invoice (CI) will also be prepared for customs and logistics purposes.
Production Lead Time
Production lead time depends on the product type, specifications, and order quantity.
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Standard or stocked items: as fast as 1 day
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Custom or large-volume orders: up to 15 days
We will keep you informed throughout the production process and notify you immediately once the goods are ready for shipment.
Shipping Arrangement
We assist with international shipping and typically arrange delivery via FedEx directly to your specified address. Shipping costs will be calculated based on package weight, dimensions, destination, and declared value, and will be clearly stated before shipment.
Customs & Import Clearance
Depending on the shipment value and local customs regulations in your country, import duties, taxes, or clearance procedures may apply. In some cases, the consignee may be required to handle customs clearance independently or provide additional documentation to local authorities. We will fully cooperate by supplying all necessary commercial documents to ensure a smooth clearance process.
If you have special shipping requirements or prefer alternative logistics options, please let us know in advance—we are happy to accommodate whenever possible.
