1. Product Overview:  The SDF-G Series General Purpose Enhanced External Cooling 3D Solid Carbide Drill is a high-performance tool specifically engineered for efficient machining. Manufactured from high-quality micro-grain tungsten carbide, this drill ensures superior performance on hard materials such as hardened steel (HRC55°). This product series is suitable for various precision mold and component machining tasks, achieving efficient and high-quality drilling operations across different materials.
2. Materials and Manufacturing Process:
   • High-Quality Micro-Grain Tungsten Carbide: The tool is crafted from high-quality micro-grain tungsten carbide stock, offering exceptional hardness and toughness. This material maintains stable cutting performance even under high temperature and pressure conditions, providing a durable and reliable machining experience.
   • Advanced Grinding Technology: Utilizing advanced German WALTER five-axis grinding machines, the tools undergo precision grinding to achieve ultra-high accuracy in both cutting edge diameter and shank diameter. This ensures optimal geometric precision and surface quality, meeting the requirements for high-precision machining.
3. Design Features:
   • External Cooling System: The drill is equipped with an efficient external cooling system that delivers coolant directly to the cutting zone. This design provides superior cooling efficiency, extending tool life and significantly enhancing machining accuracy and surface finish quality.
   • Optimized Flute Design: The flute geometry is meticulously designed to optimize chip evacuation, ensuring smooth chip removal. This design minimizes issues such as chip clogging or overheating, thereby improving machining efficiency and reliability.
   • Three-Diameter Length: The drill’s length is three times its diameter, providing excellent guidance and stability. This contributes to achieving precise drilling results while effectively reducing deflection and vibration, ensuring straightness and roundness in the drilled holes.
4. Coating Technology:
   • ALCRONA High-Wear Resistant Coating: The surface is coated with ALCRONA high-wear resistant coating, which significantly enhances the drill’s resistance to high temperatures and wear. This coating maintains stable cutting temperatures under high-speed machining conditions, reduces friction, and decreases wear rates, thereby dramatically increasing the tool’s service life and machining efficiency.
5. Application Methods:
   • Optimal Cutting Parameters: To maximize performance, it is crucial to select appropriate spindle speeds and feed rates based on the material being machined. For materials with hardness up to HRC 55, adhering to the manufacturer’s recommended values can prevent unnecessary wear or damage and ensure optimal machining outcomes.
   • Proper Maintenance: Regular inspection of the drill is necessary to identify any visible damage or excessive wear. Proper storage away from corrosive substances and maintaining cleanliness and dryness are essential to prevent oxidation and other forms of degradation. Additionally, timely removal of chips during operation prevents secondary cutting damage to the drill.
6. Suitable Applications:
   • Automotive Manufacturing: Ideal for rapid drilling of cast iron, steel, and other hard materials (HRC ≤ 55°). It excels in delivering efficient and high-quality drilling operations, particularly in applications requiring high precision and stability.
   • Mold Making: When precision drilling of mold components is required, the SDF-G series drill performs exceptionally well, especially for high-strength materials.
   • Aerospace and Heavy Machinery Manufacturing: Suitable for complex structural components and high-strength materials in aerospace and heavy machinery industries. Its superior wear resistance and stability make it an ideal choice for processing difficult-to-machine materials.
   • General Metal Machining: Widely used for machining various metal materials, including but not limited to ordinary steel, stainless steel, cast iron, and various high-hardness alloys. Whether in batch production or small-batch customization, the SDF-G series drill provides consistent high quality and reliability.
7. Quality Assurance:
   • Strict Quality Inspection: Using German ZOLLER equipment for strict quality inspection ensures that each drill meets high-performance and stability standards, conforming to the requirements for high-precision machining.

Summary

The SDF-G Series General Purpose Enhanced External Cooling 3D Solid Carbide Drill leverages its high-quality materials, advanced grinding technology, unique design features, and high-performance ALCRONA coating to become an ideal choice for precision mold and component machining. It not only excels in long-duration cutting of hard materials (HRC55°) but also provides outstanding performance and reliability across various machining environments. Whether for batch production or complex part machining, the SDF-G series offers stable and efficient solutions, ensuring machining quality and efficiency.