Tungsten Carbide Rods With Coolant Hole

  • Product name: Tungsten Carbide Rods With Coolant Hole
  • Particle: Ultrafine, Submicron, Medium, Coarse
  • Material: 100% Virgin Tungsten Carbide
  • Grade: Standard grade & Customized grade according to customers’ requirements
  • Surface: Blanks, sintered
  • Hardness: 81-93 HRA
  • Shape: Round
  • Advantage: Excellent Wear Resistance, Corrosion Resistance, Impact resistance
  • Certificate: ISO 9001
  • Properties: Wear Resistance
  • Feature: Excellent Abrasion Resistance

Product Description

Tungsten Carbide Rods with Coolant Holes are high-performance raw materials engineered for the manufacturing of premium cutting tools, such as internal-cooling drills and end mills. These rods feature precision-engineered internal channels—available in straight or helical (spiral) configurations—that allow high-pressure coolant to be delivered directly to the cutting edge.

Tungsten carbide coolant rods with hole can be used to make drilling tools, milling cutters and reamer, the design of holes is convenient for coolant to go through and improve the cutting efficiency and lifespan. Tungsten carbide rods with coolant hole are widely used to make punch dies and drawing dies which have requirements of high corrosion and accuracy, they helps to cooling and lubrication and prolong the service life of toolings. Tungsten carbide rods with coolant hole is used to make rock bit and cutting pick, the holes allow the water and gas pass.

Features of Tungsten Carbide Rods With Coolant Hole

  • Internal Cooling Channels: Designed with precision straight or helical holes to deliver coolant or high-pressure air directly to the cutting edge, effectively reducing thermal stress.
  • Enhanced Chip Evacuation: The internal fluid pressure forces metal chips out of the hole, preventing chip clogging and significantly reducing the risk of tool breakage during deep-hole drilling.
  • High Concentricity & Tight Tolerances: Maintains strict dimensional consistency and hole positioning, which is critical for balancing the tool during high-RPM (CNC) operations.

Specification of Tungsten Carbide Rods With Coolant Hole

Product nameTungsten Carbide Rods With Coolant Hole
Material100% pure tungsten carbide
ISO GradeStandard grade & Customized grade
Density12.9-15.3g/㎝³
Sizecustomization
Lengthcustomization
Surfaceblanks and fine grinding
AdvantageGood wear-resistant

Typical Applications

  1. High-Performance Twist Drills: Used as the base material for manufacturing internal-cooling drills, which are essential for high-speed drilling in CNC machining centers.
  2. Aerospace Component Manufacturing: Crucial for machining heat-resistant superalloys (HRSA), titanium, and stainless steel used in aircraft engines and structural frames.
  3. Automotive Engine Production: Widely used to produce specialized tools for drilling engine blocks, cylinder heads, crankshafts, and other high-precision automotive parts.
  4. Mold and Die Industry: Employed in the fabrication of hardened steel molds, where the internal cooling prevents the tool from softening or annealing due to extreme friction.
  5. Heavy-Duty Milling Operations: Used for high-feed end mills that require constant lubrication to maintain surface finish quality and dimensional accuracy in tough metals.
  6. Medical Device Fabrication: Used to create miniature high-precision drills for machining orthopedic implants and surgical instruments made from biocompatible alloys.

Why Choose Our Tungsten Carbide Rods With Coolant Hole?

100% Virgin Raw Materials

We use only 100% virgin sub-micron and nano-grain tungsten carbide powder, ensuring superior hardness, toughness, and consistent tool performance.

Precision Hole Geometry

Our advanced extrusion technology guarantees highly accurate hole positioning and perfectly synchronized helix angles (30° or 40°), reducing your tool-grinding waste.

ISO Certified

Every rod undergoes rigorous ultrasonic and metallurgical testing to ensure zero internal defects, cracks, or porosity before it leaves our facility.

FAQs

A1: Single central holes are typical for smaller drills or simple cooling. Double holes (straight or spiral) are the industry standard for high-performance twist drills, providing balanced cooling. Triple holes are used for specialized large-diameter tools or high-feed milling.

A2: We offer both. Unground (As-sintered) rods have a small grinding allowance for your own finishing, while Precision Ground (h6/h5) rods are ready for immediate tool grinding.

A3: Standard lengths are usually 310mm or 330mm, but we can manufacture custom lengths up to 400mm+ depending on the diameter and hole configuration.

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