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In the high-performance world of metal cutting and precision machining, tool quality is the key to operational excellence. One of the most essential materials supporting these operations is the Tungsten Carbide Rod with Through Holes, also known as a Premium Straight Coolant Hole Rod. These rods are indispensable for producing advanced cutting tools, particularly those requiring internal coolant capabilities for enhanced machining performance.

What is a Straight Coolant Hole Rod?

A Straight Coolant Hole Rod is a solid rod made from tungsten carbide – an exceptionally hard and wear-resistant material – engineered with one or more longitudinal holes running through its length. These through holes allow coolant to be delivered directly to the cutting edge of tools, significantly improving chip evacuation, heat dissipation, and cutting efficiency.
These rods are commonly used in the manufacture of:
Twist drills
End mills
Reamers
Special cutting tools requiring internal cooling

Key Features of Tungsten Carbide Rods with Through Holes

Superior Cooling Efficiency
The internal coolant channels provide a direct path for high-pressure coolant to reach the cutting zone, improving tool life and performance, especially in deep-hole drilling or high-speed cutting applications.
Exceptional Wear Resistance
Made from micro-grain or ultra-fine grain tungsten carbide, these rods exhibit high hardness and excellent toughness, ensuring prolonged tool life even under extreme machining conditions.
Consistent Material Composition
Uniform distribution of grain size and cobalt binder ensures stable mechanical properties throughout the rod, which is vital for precision tool manufacturing.
High Dimensional Accuracy
Manufactured with strict tolerances, these rods ensure high precision in the tools made from them, contributing to better machining quality and consistency.
Customization Options
Coolant holes can be tailored – one straight hole, two parallel holes, or even helical coolant holes for advanced applications – depending on the tool’s design requirements.

Applications in Modern Machining

Tungsten carbide rods with through holes are widely used across industries that demand high machining accuracy and tool durability, including:
Aerospace
Automotive
Medical device manufacturing
Mold and die making
General metalworking

Shanghai Diatooling – Your Trusted Carbide Partner

When it comes to sourcing premium coolant hole carbide rods, Shanghai Diatooling stands out as a reliable and experienced manufacturer. With decades of deep industry experience, Shanghai Diatooling specializes in the design, development, and supply of high-performance solid carbide rods and tools, tailored to the diverse needs of global manufacturers.

Why choose Shanghai Diatooling?

Technical Expertise: Our team is composed of seasoned professionals with a deep understanding of carbide metallurgy and cutting tool applications.
Quality Assurance: Every rod undergoes stringent quality checks, including microstructure analysis, dimensional inspection, and performance testing.
Global Reach: We serve clients across Europe, North America, and Asia, providing consistent delivery and technical support.
Customization Capability: Whether you need specific hole configurations, grades, or sizes, Diatooling offers tailored solutions with rapid turnaround.

Conclusion

In an industry where precision and durability are non-negotiable, selecting the right raw materials makes all the difference. Premium Straight Coolant Hole Rods crafted from tungsten carbide are the backbone of modern cutting tool innovation. When sourced from an expert like Shanghai Diatooling, you get more than just a product – you get a commitment to performance, reliability, and quality.

Understanding the Function of Straight Coolant Hole Rods in Industrial Machining

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Shanghai Diatooling

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