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Help CenterSolid Tungsten Carbide Twist Drill Bit
Product Spotlights
2.Sharp cutting geometry ensures clean, precise holes
3.Polished flutes for fast, smooth chip removal
4.Works great on steel, stainless steel, aluminum, and alloys
5.Custom sizes and coatings available upon request
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Product Overview
Our Solid Tungsten Carbide Twist Drill Bits are high-performance, precision-engineered cutting tools designed for demanding industrial drilling applications. Manufactured from premium-grade tungsten carbide, they deliver exceptional hardness, wear resistance, and dimensional stability, ensuring long service life and consistent performance across a wide range of materials.
✨ Key Features
| Feature | Details |
|---|---|
| Premium Solid Tungsten Carbide Construction | Made of high-purity tungsten carbide with optimized cobalt binder, offering high hardness (HRA 91-92.5) and outstanding thermal stability. It maintains sharp cutting edges even at high temperatures, outlasting conventional HSS drills by 50-100 times. |
| Precision Ground Spiral Flutes | Polished, high-helix flutes enable fast, smooth chip evacuation, reducing heat buildup and preventing clogging. This design ensures clean, burr-free holes with minimal cutting resistance. |
| Versatile Drill Length Options | Available in standard Jobber-length, rigid Stub-length, and Taper-length configurations to suit different drilling depths and rigidity requirements. Custom lengths are also supported. |
| Optimized Cutting Geometry | Precision ground point angles (118°/140° optional) provide excellent centering accuracy, preventing walk and ensuring precise hole location even in hard materials. |
| Multi-Material Compatibility | Suitable for drilling carbon steel, stainless steel, alloy steel, aluminum, copper, brass, and other non-ferrous metals. Ideal for both ferrous and non-ferrous machining. |
| Customizable Specifications | Available in diameters from 0.3mm to 20mm, with optional surface coatings (TiAlN/TiN) for enhanced wear resistance. OEM/ODM services are fully supported. |
🛠️ Applications
Primary Application: Metal Drilling (steel, stainless steel, aluminum, alloys)
Secondary Applications: Suitable for precision drilling in automotive, mold-making, mechanical processing, and CNC machining centers.
Not Ideal For: Wood, masonry, PCB, or water well drilling (use dedicated tools for these materials).
📋 Technical Specifications
Material: 100% solid tungsten carbide
Hardness: HRA 91-92.5
Diameter Range: 0.3mm - 20mm (customizable)
Length Types: Jobber-length / Stub-length / Taper-length / Custom
Point Angle: 118° / 140° (customizable)
Surface Treatment: Uncoated / TiAlN coated / TiN coated (optional)
Tolerance: Strictly controlled to meet ISO industrial standards
🔧 Usage & Maintenance Guidelines
Proper Installation: Use high-precision tool holders to ensure secure clamping and minimize vibration during operation.
Cooling & Lubrication: Apply appropriate cutting fluid or coolant to reduce heat, improve chip flow, and extend tool life.
Optimal Parameters: Adjust spindle speed, feed rate, and cutting speed according to the workpiece material and drill specifications to avoid premature wear or breakage.
Storage: Store drills in protective cases to prevent damage to cutting edges and maintain dimensional accuracy.
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