Solid Tungsten Carbide Coolant Hole Rods | Multi-Hole Straight & Helical Coolant Channel Carbide Rod
$35.88
Maximize Tool Life & High-Pressure Chip Evacuation! ⚡⚙️
Engineered for premium CNC cutting tool manufacturers and deep-hole drilling applications, Panda Carbide Technology CO., LTD. supplies sub-micron Tungsten Carbide Coolant Hole Rods. Featuring precision-extruded straight and helical internal coolant channels (2-hole, 3-hole, 6-hole, and multi-hole pitch circles), our rods ensure high-pressure fluid delivery directly to the cutting zone.
Manufactured from 100 % virgin sub-micron tungsten carbide powder ( 0.4 - 0.8 μm ) and processed via Overpressure HIP Sintering ( 1,450°C ), Panda Carbide coolant rods deliver extreme transverse rupture strength ( >4,000 MPa ) and high wear resistance, preventing thermal cracking and tool breakage during severe aerospace and automotive machining.
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1. Technical Specifications & Custom Configurations (Product Specs)
2. Material Grade Recommendation Guide for Tool Manufacturers
Select the optimal carbide grade for your cutting tool blanks based on workpiece hardness and machining conditions:
1. Premium Sub-Micron Grade (10% Cobalt — Ultimate General Purpose):
Grain Size: 0.6 μm | Hardness: 92.5 HRA | TRS: 4,000 MPa
Best For: Universal internal-coolant end mills and twist drills machining stainless steel, carbon steel, and cast iron.
Key Advantage: Optimal balance of wear resistance and edge toughness, preventing micro-chipping under high-pressure coolant flow.
2. Ultra-Fine Grain Grade (12% Cobalt — High Toughness for Deep Drilling):
Grain Size: 0.4 μm | Hardness: 91.8 HRA | TRS: 4,300 MPa
Best For: Gun drills, long-series deep-hole drills ( 10D - 30D ), and heavy-interrupted drilling in aerospace Nickel alloys (Inconel).
Key Advantage: Exceptional flexural strength resists torsional vibration and high thermal shock.
3. Nano-Grain Grade (6% Cobalt — Extreme Hardness for Hardened Steel):
Grain Size: <0.5 μm | Hardness: 93.8 HRA | TRS: 3,800 MPa
Best For: High-speed finishing end mills for hardened mold steel ( >55 HRC ).
3. Core Technical Advantages & Engineering Highlights
Precision Co-Extruded Coolant Channels: Internal fluid channels are co-extruded during the green powder stage, ensuring consistent hole pitch diameter, uniform wall thickness, and zero fluid flow blockage.
h6 Ground Tolerances: Available as unground blanks or precision h6 ground rods ready for immediate 5-axis CNC grinding (ANCA/Walter), saving toolmakers setup time.
Overpressure HIP Sintering ( 1,450°C ): Processed to ISO 4499 A00 porosity rating, eliminating internal micro-voids and preventing high-pressure coolant leaks or structural rod fracturing.
4. Technical Q&A
Q: Why are multi-hole internal coolant carbide rods preferred over solid rods for high-speed drilling of titanium alloys?
A: Drilling titanium alloys (Ti-6Al-4V) generates extreme localized heat and long, gummy chips. Solid carbide rods rely on external flood coolant, which cannot reach the drill point in deep holes. Multi-hole internal coolant carbide rods from Panda Carbide Technology CO., LTD. deliver high-pressure cutting fluid directly through the tool body to the cutting edge. This rapidly reduces cutting temperatures, breaks chips for easy evacuation, and extends tool service life by up to 300 %.
5. Call to Action (CTA)
Elevate Your CNC Tool Manufacturing Efficiency!
Looking for consistent, defect-free coolant hole carbide rods for your CNC drill and end mill production? Panda Carbide Technology CO., LTD. provides custom hole configurations, specialized cobalt grades, and precision h6 ground lengths.
📧 Email: info@pandacarbide.com
🌐 Website: www.pandacarbide.com
