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External Cooling Drill Bit

Product Selling Points

Sandvik Original Quality with High-Performance Coating: Made with Sandvik-produced carbide substrate and a specialized wear-resistant coating, this drill offers excellent hardness, chipping resistance, and anti-built-up-edge performance. It delivers consistent results across carbon steel, alloy steel, and stainless steel, significantly extending tool life compared to standard carbide drills.

5D External-Cooling Design for Stable Medium-Depth Hole Machining: The 5× diameter flute geometry is optimized for smooth chip evacuation, even with long chips from stainless steel. Combined with external cooling, it ensures efficient heat removal, preventing clogging and tool jamming while maintaining high hole accuracy and surface finish.

High-Rigidity Solid Carbide Construction for Versatile Compatibility: The solid carbide structure provides exceptional rigidity and vibration resistance, enabling stable high-speed/high-feed drilling with minimal hole deflection. The external cooling design is compatible with standard CNC machines, lathes, and drill presses, ideal for mass production in machinery, automotive, and mold industries.

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Parameters

Product Selling Points

Related Products

Parameters

Cutting parameters

Drill Diameter (mm)	Feed per Revolution Fn (mm/rev)*
	Minimum	Starting Value	Maximum
3	0.06	0.1	0.13
4	0.07	0.11	0.14
6	0.11	0.18	0.24
8	0.16	0.21	0.25
10	0.19	0.23	0.27
12	0.22	0.25	0.29
16	0.23	0.28	0.33
20	0.26	0.3	0.34

Product Selling Points

FAQ

Q: Who are we?

Our headquarters is located in Zhejiang, China. Starting in 2023, we sold to South Asia (10.00%), Southern Europe (10.00%), Northern Europe (10.00%), Western Europe (10.00%), East Asia (10.00%), Middle East (10.00%), Southeast Asia (10.00%), Eastern Europe (10.00%), South America (10.00%). There are a total number of people in our office.

Q: How do we guarantee quality?

We always provide samples before mass production; We always conduct a final inspection and take photos for customer confirmation before shipment;

Q: What can you buy from us?

Boiling cutters, milling cutters, CNC inserts, grooving inserts, reamers, tool holders, tool sleeves, and other industrial machinery and equipment.

Q: How do we ensure quality?

Q: Why should you buy from us instead of other suppliers?

Wenqiao Sanqiang CNC Tools Co., Ltd., established in 2011, is located in Wenling, Taizhou, China, covering an area of 10 mu (approximately 6,667 square meters). We specialize in high-quality CNC cutting tools, including CNC carbide inserts, carbide end mills, and turning tool fixtures. Our quality speaks for itself, resulting in a high customer repurchase rate and numerous positive reviews.

Q: What services can we provide?

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