Tungsten carbide coolant hole rods are high-performance carbide blanks designed for manufacturing solid carbide cutting tools such as end mills, drills, and reamers. With precisely engineered internal coolant channels, they provide efficient cooling, improved chip evacuation, and extended tool life during high-speed machining.
Zhuzhou Century Tool supplies premium coolant hole carbide rods with excellent hardness, wear resistance, dimensional accuracy, and customized grades to meet various cutting tool manufacturing requirements.
Key Features:
Applications:
Available Grades:
YG6, YG8, YG10X, YG12X, UF grades and customized carbide grades.
Tungsten carbide coolant hole rods are precision-engineered cemented carbide blanks with internal coolant channels designed for manufacturing high-performance cutting tools, including solid carbide end mills, drills, reamers, and special rotary tools.
By integrating internal coolant holes into carbide rods, cutting fluids can be delivered directly to the cutting edge, improving chip evacuation, reducing cutting temperature, and extending tool life during high-speed machining.
Zhuzhou Century Tool manufactures premium tungsten carbide coolant rods with excellent hardness, wear resistance, dimensional accuracy, and consistent metallurgical performance for global cutting tool manufacturers.
During high-speed machining, heat accumulation and chip removal are two major factors affecting tool performance. Coolant hole carbide rods provide an effective solution by delivering coolant directly through the tool body.
Compared with standard solid carbide rods, coolant hole rods provide superior performance in demanding machining applications.
Our carbide rods are produced using premium tungsten carbide powder and cobalt binder, ensuring:
Available coolant hole configurations include:
Precise hole positioning ensures balanced tool performance and stable cutting conditions.
Advanced grinding technology ensures:
Typical diameter tolerance:
h5 / h6 tolerance available
Optimized carbide grades provide excellent resistance against:
Suitable for high-speed milling and drilling applications.
Tungsten carbide coolant hole rods are widely used for manufacturing:
| Workpiece Material | Recommended Carbide Rod Grade |
|---|---|
| Carbon Steel | YG6, YG8 |
| Alloy Steel | YG8, YG10 |
| Stainless Steel | YG10X, YG12X |
| Cast Iron | YG6, YG8 |
| Hardened Steel | Ultra-fine grades |
| Aluminum Alloy | Fine grain carbide |
| Titanium Alloy | High toughness grades |
| Composite Materials | Customized grades |
Zhuzhou Century Tool supplies a wide range of tungsten carbide grades for different machining applications.
| Grade | Grain Size | Hardness | TRS | Recommended Application |
|---|---|---|---|---|
| YG6 | Medium | 90 HRA | High | General cutting tools |
| YG8 | Medium | 89 HRA | Higher toughness | Drilling and rough machining |
| YG10X | Fine | 91 HRA | High wear resistance | Stainless steel and precision tools |
| YG12X | Fine | 91.5 HRA | Excellent toughness | Milling applications |
| YG15 | Coarse | 86.5 HRA | Very high strength | Heavy-duty cutting |
| UF Grade | Ultra-fine | 92 HRA+ | High edge strength | Micro tools and high-speed machining |
Customized carbide grades are available according to customer requirements.
| Item | Specification |
|---|---|
| Diameter Range | Ø3 mm – Ø30 mm |
| Length | 50 mm – 330 mm |
| Coolant Type | Single / Double / Triple Hole |
| Hole Shape | Straight / Spiral |
| Surface Finish | Ground / Polished |
| Tolerance | h5 / h6 |
| Material | Tungsten Carbide + Cobalt |
| Production | OEM Available |
Our tungsten carbide coolant rods are manufactured through a strict quality-controlled process:
High-quality tungsten carbide powder and cobalt binder are precisely mixed.
The carbide mixture is shaped into rod blanks under controlled pressure.
High-temperature vacuum sintering creates a dense and uniform carbide structure.
Precision centerless grinding achieves accurate diameter tolerance.
Each batch is inspected for:
Zhuzhou Century Tool is a professional manufacturer specializing in tungsten carbide materials and precision cutting tool components.
We provide:
Our tungsten carbide coolant hole rods are widely supplied to cutting tool manufacturers producing end mills, drills, reamers, and specialty tools.
Tungsten carbide coolant hole rods are mainly used to manufacture solid carbide cutting tools such as end mills, drills, reamers, and special rotary tools where internal coolant delivery is required.
Solid carbide rods have no internal channels, while coolant hole rods contain precision coolant passages that deliver cutting fluid directly to the cutting zone, improving cooling and chip removal.
Fine-grain and ultra-fine grain carbide grades such as YG10X, YG12X, and UF grades are commonly used for high-performance end mills because they provide excellent wear resistance and edge stability.
Yes. Zhuzhou Century Tool provides customized coolant hole designs, diameters, lengths, grades, and tolerances according to customer drawings and tool manufacturing requirements.
High precision coolant hole rods can typically achieve h5 or h6 diameter tolerance after precision grinding.
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