Precision Engineering & Thermal Performance
1. CNC Precision Grinding
Manufactured using advanced CNC grinding, our HSS center drills deliver uniform step geometry, razor-sharp cutting edges, and perfectly centered tips. This ensures clean, stable, and highly accurate drilling, even at high speeds-making them ideal for metal lathe operations that demand minimal vibration and exact alignment.
2. Vacuum Heat Treatment
To maximize hardness and structural durability, each drill undergoes vacuum heat treatment. This process significantly improves both surface wear resistance and core toughness, allowing the drills to maintain performance when cutting hard metals like stainless steel, aluminum, and tool-grade alloys, even under intense heat and pressure.
3. Ultra-Fine Polished Surface
The mirror-like polished finish reduces friction and improves chip evacuation during deep or repetitive drilling. This not only minimizes heat buildup but also protects the integrity of the workpiece surface, especially when machining soft metals or thermoplastics.
Refined Metallurgy & Heat Optimization
1. Advanced Steel Purification: EAF + LF + VD + RS-ESR
Our drills are crafted from ultra-pure HSS through a multi-stage metallurgical process-Electric Arc Furnace (EAF), Ladle Furnace (LF), Vacuum Degassing (VD), and Rapid Solidification Electro-Slag Remelting (RS-ESR). The result is a high-uniformity, low-impurity steel matrix that offers superior toughness and dimensional consistency in demanding machining environments.
2. Integrated Thermal Optimization
A precision heat-treatment sequence-quenching, cryogenic treatment, and tempering-elevates hardness up to HRC 67, while maintaining flexibility to resist chipping and cracking. This ensures reliable performance in high-speed, high-load lathe applications across automotive, aerospace, and general metal fabrication sectors.
3. RS-ESR Edge Enhancement Technology
By reinforcing the cutting edge with uniformly dispersed carbides and cobalt, RS-ESR technology boosts edge retention and wear resistance. This makes our drills suitable for long-duty cycles under high temperature and continuous impact.
Customizable Engineering to Fit Your Application
1. Material Options: M35-Centric Focus
We recommend M35 HSS as our core material for its optimal hardness-to-toughness balance, giving it an edge in metal drilling where both precision and durability are critical. M2 and M42 versions are also available based on specific use cases.
2. Tailored Geometries & Industrial Coatings
Custom options include step diameters, flute lengths, and helix angles to match your toolpath requirements. For extended tool life and reduced friction, we offer application-specific PVD coatings, such as:
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TiN: General-purpose wear resistance
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TiAlN: High-temperature cutting stability
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TiCN: Enhanced performance in abrasive conditions
Optimized Design for High-Precision Lathe Work
1. Multi-Step Flute Optimization
Engineered flutes between each step enhance chip removal and heat dissipation, ensuring consistent, clog-free drilling in high-RPM applications-especially effective in thin metal sheets, layered materials, or thermoplastics.
2. Advanced Cutting Geometry
Our drills feature refined step transitions and tip angles, reducing axial force and material distortion. This results in clean, concentric holes, especially when working with soft metals, thin-walled components, or pre-finished surfaces.
3. Performance-Driven Surface Treatments
The use of industry-proven coatings further enhances the durability of our drills in intensive production environments. Whether you're machining precision alignment holes, tapping centers, or reaming guides, these tools ensure maximum performance with minimal downtime.
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