Solid Carbide Drills
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![Solid Carbide Drill Bits for Hardened Steel]()
Solid Carbide Drill Bits for Hardened SteelCarbide twist drills are designed specifically for machining high-hardness steels and are particularly suitable for efficient drilling of hardened steel (55-65HRC) and other wear-resistant...read more -
![Carbide Drill Bits for Aluminum Alloy]()
Carbide Drill Bits for Aluminum AlloyCarbide twist drills are designed for efficient drilling of aluminum alloys and other non-ferrous metals. Utilizing advanced carbide materials and precision coating technology, they exhibit...read more -
![Carbide Drill Bits for Stainless Steel]()
Carbide Drill Bits for Stainless SteelCarbide twist drills are designed specifically for drilling stainless steel and other difficult-to-machine materials. Utilizing high-performance carbide and incorporating advanced coating...read more -
![Carbide Drill Bits for Steel]()
Carbide Drill Bits for SteelCarbide twist drills are designed for precision drilling in high-strength steel and alloy steels. These drills utilize high-performance carbide materials, combined with advanced coating...read more
Product Introduction
What are Solid Carbide Drills
Solid Carbide Drills are engineered to deliver superior cutting performance, precision, and durability in CNC machining operations. Made from ultra-hard carbide material, these drills provide excellent wear resistance and heat resistance, ensuring reliable performance even under high-speed and heavy-duty cutting conditions.
They are widely used for drilling into a variety of materials such as stainless steel, hardened alloys, cast iron, and titanium. With optimized geometries and advanced coating options (TiAlN, TiN, etc.), Solid Carbide Drills enable manufacturers to achieve consistent hole quality, reduce cycle times, and improve overall productivity.
Product Positioning
At Great CNC Machine, our Solid Carbide Drills are positioned as part of a one-stop machining center solution—helping customers streamline their tooling needs with complete compatibility and technical support. Unlike expensive big-brand drills, our products offer the same cutting precision and tool life at a more competitive cost, making them the ideal alternative for distributors and manufacturers looking to balance quality with affordability.
Solid Carbide Drills by Workpiece Material
| Workpiece material | Drills Series | Dimension Range | Coolant Type | Drilling Depth L/D | Features | Application |
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Carbide drill bits for steel
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D101/D102/D103 | 4-20mm | External Coolant | / | Suitable for Drilling steel, cast iron, aluminum alloy, copper alloy | Suitable for Drilling the center hole and chamfer |
| D918S | 3～20mm | External Coolant | 3D | Curved edge design, balance tip strength and sharpness. New G form flute design, strengthens chip breaking performance and tool rigidity. New substrate and upgraded coating contribute to higher flexibility for various Drilling conditions and better universality. |
Suitable for Drilling mild Steel, Interrupted cutting, defective Coolant condition and other severe working conditions. | |
| D938 | 1～20mm | Internal/External Coolant | 3D-25D | New substrate material, perfect balance of toughness and wear resistance. Using AlTiN-nano coating and unique post-processing of coating. Optimize groove profile and Drill point design, with super self-centering. Performance, chip breaking performance and good chip evacuation performance. |
Suitable for efficient Drilling of Steel, Cast Iron and Stainless steel | |
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Solid carbide drill bits for stainless steel
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D968S | 1～20mm | Internal/External Coolant | 3D-5D | Unique bottom edge design–stronger chip breaking capability and larger chip holding space. New substrate coating contributes to superior toughness and wear resistance. Large groove design provides good chip evacuation performance. |
Suitable for high efficient Drilling of stainless steel, carbon steel, alloy steel, heat-resistant alloys and titanium alloys, etc |
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Solid carbide drill for aluminium alloy
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D966 | 3～20mm | Internal/External Coolant | 3D-5D | High precision surface treatment technology for smoother chip removal. Unique edge design makes cutting easily. |
Suitable for the processing of aluminium alloy, copper alloy and other nonferrous alloy |
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Solid carbide drill bits for hardened steel
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D998 | 4～16mm | External Coolant | 3D | Large core thickness, small helix angle, high rigidity and strength. X-shaped Drills tip, excellent self-center capability. Radius Drills point, contributes to excellent hole-wall quality. |
Suitable for Drilling hardened steel |
Why Choose Us
When it comes to choosing the right drilling tools, we know that quality, performance, and cost-effectiveness matter the most. Here’s why manufacturers and distributors worldwide choose Great CNC Machine for Solid Carbide Drills and CNC drilling solutions:
One-Stop Machining Center Solution
We don’t just sell individual drills — we provide a complete range of CNC machining tools and accessories. This ensures seamless compatibility, reduced sourcing time, and greater convenience for your production line.
Affordable Alternative to Big Brands
Our Solid Carbide Drills deliver the same level of precision, durability, and performance as leading international brands — but at a much more competitive price. This makes us the ideal partner for distributors and manufacturers seeking high quality without overpaying.
Strict Quality Control
Every drill undergoes rigorous inspection and testing to guarantee consistent accuracy, long tool life, and stable performance, even under demanding machining conditions.
Tailored Solutions
We offer multiple geometries, coatings, and drill sizes to match your exact requirements. Whether it’s for aerospace, automotive, or general metalworking, our team helps you choose the right tool for your application.
Trusted by Global Customers
With 20+ years of industry experience, we have earned the trust of clients in more than 50 countries. Our reputation is built on reliable products, responsive service, and long-term partnerships.
Dedicated Technical Support
Our experts provide pre-sale consultations, usage guidance, and after-sales service, ensuring you maximize tool life and machining efficiency.
Solid Carbide Drills Manufacturing Process
01
Raw Material Preparation
High-grade tungsten ore is extracted and refined into ultra-fine tungsten powder, providing the essential base for carbide production.
02
Carbide Formation
Through powder metallurgy and high-temperature sintering, tungsten powder reacts with carbon to form tungsten carbide (WC), known for its exceptional hardness.
03
Cemented Carbide Production
Tungsten carbide is combined with a metallic binder to create cemented carbide, which balances hardness and toughness, ensuring durability under extreme cutting conditions.
04
Tool Manufacturing
Cemented carbide blanks are ground, heat-treated, and coated with advanced CNC technology to form solid carbide drills with precise geometry, high wear resistance, and long service life.
Solid Carbide Drills vs Indexable Drills
| Feature |
Solid Carbide Drill |
Indexable Drills |
|---|---|---|
| Material Structure | Made from one-piece solid carbide | Steel body with replaceable carbide inserts |
| Precision & Accuracy |
Very high – excellent surface finish and hole quality |
Moderate – good accuracy but not as precise |
| Tool Life | Long per tool (but requires full replacement or regrinding) | Inserts wear faster, but drill body is reusable |
| Cost | Higher upfront investment | Lower initial cost, economical for frequent use |
| Best for | High-speed drilling, hard materials (stainless steel, titanium, alloys) | Large-diameter holes, mass production, general-purpose drilling |
| Maintenance |
Requires regrinding or replacement |
Simple insert replacement, lower maintenance cost |
| Application Focus | Precision machining, aerospace, mold making, automotive | General machining, high-volume production |
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Our Certificate
Application Case
Product: Solid Carbide Twist Drill for Aluminum Alloy
Workpiece: Pipe Section Components
Material: Copper (Cu)
Tool Specification: D6.8 × 53 × 91 × d8
Cutting Speed (Vc): 220 m/min
Feed Rate (fr): 0.1 mm/r
Cutting Depth (ap): 26 mm
Cooling Method: External Cooling
Machining Method: Lathe, Peck Drilling
Performance Comparison
GME Drill Performance: 4,000 pieces processed within the same time frame
Other Brand Drill Performance: 3,500 pieces processed
Productivity Improvement: +14% output efficiency
Key Advantages:
Higher drilling efficiency and stable performance in copper materials
Longer tool life under continuous peck drilling conditions
Improved hole quality with consistent dimensional accuracy
Reduced downtime and lower cost-per-part for manufacturers
fAQ
Q:1. What are solid carbide drills used for
A: Solid carbide drills are primarily used for high-precision drilling in hard materials such as steel, stainless steel, cast iron, titanium alloys, and non-ferrous metals. They offer high wear resistance, longer tool life, and excellent hole quality compared to standard HSS drills.
Q:2. How long is the tool life of a solid carbide drill?
A: Tool life depends on the workpiece material, cutting parameters, and cooling conditions. Generally, solid carbide drills last 2–5 times longer than HSS drills and offer consistent performance under high-speed cutting conditions.
Q:3. Can solid carbide drills be re-sharpened?
A: Yes. Solid carbide drills can be re-sharpened multiple times with professional grinding equipment. This helps reduce tooling costs and ensures continued accuracy.
Q:4. How do I select the right solid carbide drill for my application?
A: Key factors include workpiece material, hole diameter, depth-to-diameter ratio, machine type, and cooling method. Our technical team can recommend the best tool based on your specific requirements.
Q:5. What coatings are available for solid carbide drills?
A: Common coatings include TiAlN, TiN, and AlTiN, which improve wear resistance, reduce friction, and extend tool life. For aluminum and copper, uncoated or diamond-like carbon (DLC) coatings are recommended.
Q:6. What industries commonly use solid carbide drills?
A: Industries such as aerospace, automotive, mold & die, oil & gas, and precision manufacturing widely use solid carbide drills for their efficiency and accuracy in drilling critical components.
Great Magtech (Xiamen) Electric Co., Ltd is one of the most professional solid carbide drills manufacturers and suppliers in China. If you're going to buy high quality solid carbide drills, welcome to get more information from our factory. Good service and competitive price are available.