Premium HSS Center Drills for Accurate and Efficient Machining

• Customization: Available
• Customized: Customized
• Standard: GB/T
• Model NO.: HSS
• Length: Standard Length
• Type: Center Drill Bit
• Material: High Speed Steel
• Usage: Metal Drilling
• Unit Price: Contact Us to Get Latest Price
• Customized Support: OEM, ODM
• Application: Stainless Steel, Aluminum, Copper, Steel and Other
• Color: Customizable
• Transport Package: Plastic Box or Your Requriement
• Specification: Standard Sizes or Customized
• Trademark: ZEICIN
• Origin: China
• HS Code: 8207501000

Product Description

 

ZEICIN is a specialized export brand focusing on high-speed steel (HSS) raw materials and precision tools. With independently developed material technology and a one-stop production system - from raw material development, smelting, RS-ESR remelting, forging, heat treatment to precision machining - ZEICIN delivers stable, high-quality, and cost-effective products. We are committed to providing reliable, durable HSS materials and specialized drills for demanding applications such as stainless steel, quenched & tempered steel, and alloy components, meeting high-quality, high-performance, and high cost-performance standards.

 

Product Description

 

• Wide Application Range

  Crafted from premium high-speed steel (HSS), these center drill bits are specifically designed for precision drilling in metal lathe operations. Perfect for drilling through materials such as aluminum, brass, mild steel, and various other metals, they provide clean and accurate holes with minimal burr formation. Their versatility makes them essential in industries like metalworking, automotive, and manufacturing, ensuring smooth, precise holes for further machining processes.

   

  Multi-Diameter Drilling with Integrated Deburring

  Each center drill bit features a unique stepped design that allows for the drilling of different hole sizes without needing to switch tools. The precisely machined steps ensure smooth transitions between diameters, while integrated deburring capabilities guarantee clean, professional-grade holes, minimizing the need for secondary processes or finishing. This improves both efficiency and productivity in the machining process.

   

  Thermally Enhanced for Longevity

  Made from high-speed steel and treated with advanced heat treatment processes, these center drill bits are designed for durability and long-lasting performance. The enhanced thermal resistance ensures they retain their sharpness and structural integrity even under high-speed, high-temperature lathe operations, making them ideal for extended use in precision machining tasks that require consistent performance over time.

   

  Cross-Industry Utility

  Ideal for both professionals and hobbyists, these center drill bits are essential tools for metal lathe operations. Commonly used in industries such as metalworking, automotive, aerospace, and manufacturing, they are perfect for tasks like creating precise centers for drilling, tapping, and reaming in a variety of metal components. Their accuracy and reliability make them indispensable for high-precision machining tasks across multiple industries.

 

Six Key Features

1. Premium Material Selection - High-quality steel for extended lifespan.
2. Short Lead Time - Efficient production ensures quick delivery.
3. Fast Drilling Speed - Sharp cutting edge for rapid penetration.
4. Reliable Quality - Strict quality control for consistent performance.
5. Multiple Specifications - Various sizes to meet different needs.
6. High Fracture Resistance - Reinforced design prevents breakage.

 

Detailed Advantages

1. Razor-Sharp Cutting Edge for High Precision

Crafted from premium high-speed steel (HSS), these center drill bits feature precision-ground cutting edges that ensure smooth, efficient penetration into metal surfaces. The sharp edges reduce cutting resistance, resulting in clean, accurate holes with minimal effort. This is essential for precise lathe operations, making these drill bits ideal for tasks that require high accuracy and clean finishes.

2. Self-Centering Split Point Tip for Superior Control

The self-centering split point design provides precise starting without the need for center punching. This ensures stable, walk-free drilling, even on curved or hard metal surfaces, offering superior control and precision from the very first contact. This feature reduces the risk of drill bit slipping and helps maintain drilling accuracy throughout the process.

3. Efficient Step-by-Step Chip Removal

Each step of these center drill bits is meticulously engineered for optimal chip clearance. The spiral flute design effectively removes metal shavings, preventing clogging and minimizing heat buildup during deep or repetitive drilling. This ensures smoother drilling, increases tool life, and enhances overall machining efficiency, especially during high-speed lathe operations.

4. Durable, Corrosion-Resistant Finish

These center drill bits are finished with a polished or coated surface (e.g., titanium coating), enhancing their resistance to rust, wear, and corrosion. This feature is particularly beneficial for professionals working in environments exposed to moisture or lubricants, ensuring long-term durability and consistent performance throughout the drill bit's life.

5. Balanced, Multi-Stage Design for Enhanced Efficiency

The multi-step geometry of these drill bits allows for the drilling of multiple hole sizes with a single tool, reducing the need for tool changes and improving operational efficiency. The design ensures balance and control during use, making it perfect for tasks like creating centers for drilling, tapping, or reaming in metalworking, automotive, and manufacturing applications.

 

Why Choose Our Product?

1. Superior Wear Resistance & Heat Tolerance
Crafted from premium high-speed steel (HSS), our center drill bits are designed to withstand the high temperatures and friction encountered during metal lathe operations. The enhanced hardness of the HSS ensures the drill bits maintain their sharpness and structural integrity even under demanding conditions. This makes them ideal for repeated use on tough metals such as stainless steel, aluminum, and other alloys, ensuring long-lasting performance and consistent precision.

 

2. Multi-Diameter Drilling with Clean Finishes
Each center drill bit is designed for precision drilling, allowing you to create accurate, clean holes without the need for frequent tool changes. The stepped design facilitates gradual hole enlargement, ensuring clean, burr-free finishes. This feature reduces the need for secondary finishing or deburring, saving both time and costs, and improving overall operational efficiency.

 

3. Reliable, Professional-Grade Versatility
Whether you're a professional machinist, metal fabricator, or DIY enthusiast, our high-precision center drill bits are a reliable choice for a wide range of lathe applications. They are perfect for tasks such as drilling centers for tapping, reaming, or boring metal components. Offering precise control, clean results, and consistent performance, these drill bits are essential for high-accuracy metalworking projects across industries such as automotive, aerospace, and manufacturing.

Our Advantages

CNC Precision Grinding for Consistent Performance

Our premium HSS center drill bits are manufactured using CNC precision grinding, ensuring uniform step heights, razor-sharp cutting edges, and accurate tip centering. This precision guarantees clean, accurate drilling for creating centers in metal parts, with minimal vibration and maximum stability-especially important during high-speed lathe operations. Whether you're drilling soft metals or hardened alloys, these bits maintain superior performance and reliability.

 

Vacuum Heat Treatment for Superior Durability

To enhance the tool's longevity, each center drill bit undergoes vacuum heat treatment, increasing both surface hardness and core toughness. This treatment significantly improves resistance to wear and heat, making them ideal for drilling through tough materials such as stainless steel, aluminum, and other metals. The enhanced thermal resistance ensures these drill bits maintain sharpness and structural integrity during demanding lathe operations.

 

Ultra-Fine Polishing for Smoother Drilling

The ultra-fine polished surface of our HSS center drill bits reduces friction, enhances chip evacuation, and minimizes heat generation during deep or repetitive drilling. This polishing treatment also protects both the drill bit and the workpiece surface, ensuring smooth, precise drilling without surface damage-particularly when working with soft metals or thermoplastics.

 

Refined Metallurgy & Thermal Optimization for Extended Tool Life

1. Advanced Steel Purification: EAF + LF + VD + RS ESR

Our center drill bits are crafted from ultra-clean high-speed steel (HSS) through advanced metallurgical processes such as Electric Arc Furnace (EAF), Ladle Refining (LF), Vacuum Degassing (VD), and Electro-Slag Remelting (ESR). This purification process reduces impurities and significantly enhances the toughness and reliability of the drill bits, making them highly effective for drilling through hard metals and layered composites.

2. Integrated Thermal Optimization for High Performance

A combination of quenching, cryogenic treatment, and precision tempering increases hardness to HRC 67, while maintaining resistance to chipping and cracking. This ensures that our center drill bits remain highly reliable in high-speed and high-pressure lathe conditions, making them perfect for precision lathe work in automotive, aerospace, and manufacturing industries.

3. RS ESR Edge Enhancement Technology

Through Rapid Solidification ESR processing, the cutting-edge structure is reinforced with uniformly distributed carbides and cobalt, further enhancing edge retention and wear resistance. This leads to consistent performance even in high-temperature, high-load lathe operations, making these bits perfect for extreme machining environments.

 

Customizable Engineering Options to Meet Your Needs

1. Material Flexibility: M35-Centric Configuration

While we offer M2 and M42 variants, we prioritize M35 HSS for its superior hardness-to-toughness ratio, making it ideal for metal drilling, where both edge strength and wear resistance are critical for precise lathe work.

2. Tailored Step Geometry & Coatings

We offer a wide range of customizable options for step sizes, flute lengths, helix angles, and coating choices to meet specific industrial needs. Optional PVD coatings like TiN, TiAlN, or TiCN further enhance thermal resistance, reduce friction, and extend tool life in high-load lathe applications.

 

Key Design Adaptations for Precision Lathe Drilling

1. Multi-Step Flute Optimization

The flutes between each step are carefully engineered to provide efficient chip removal and thermal management, reducing the risk of clogging during high-speed lathe drilling, especially when working with thermoplastics or thin metal sheets. This ensures consistent, smooth drilling even at higher RPMs.

2. Engineered Cutting Angles for Stability

The step transitions and tip geometry are optimized to reduce axial force, improve stability, and prevent material deformation. This design is especially useful when drilling soft metals or thin-walled parts, ensuring a clean and accurate finish with minimal material distortion.

3. Performance-Enhancing Coatings

Our center drill bits come with TiAlN coatings for high-temperature lathe operations and TiCN coatings for extreme wear environments. These coatings significantly improve tool lifespan, allowing for reliable, multi-diameter drilling even in challenging industrial conditions.

 

Packaging & Shipping

FAQ

Q1: What makes premium HSS center drill bits different from regular drill bits?
A: Premium HSS center drill bits are made from a special high-speed steel (HSS) alloy that provides superior heat resistance, wear resistance, and durability compared to standard drill bits. The premium material ensures that these bits maintain their sharpness for longer, making them ideal for precise lathe operations. Their unique design ensures clean, accurate holes, critical for tasks like drilling, tapping, and reaming in hard metals and tough alloys.

 

Q2: What materials can these premium HSS center drill bits handle?
A: These premium HSS center drill bits are designed for precision drilling in a variety of metals, including stainless steel, aluminum, mild steel, and alloys. They are perfect for metalworking, automotive, and machining industries, providing high accuracy and clean results when creating centers for subsequent operations like drilling, tapping, and reaming. Their versatility makes them indispensable in demanding industrial environments.

 

Q3: Are these center drill bits available in different sizes?
A: Yes, our premium HSS center drill bits are available in multiple sizes to accommodate various lathe operations. Whether you're working with small components or large metal pieces, we have the right size to meet your needs. Additionally, custom sizes and configurations are available upon request to meet specific industrial requirements for your unique projects.

 

Q4: Can these center drill bits be used for high-speed drilling?
A: Absolutely! These premium HSS center drill bits are specifically engineered for high-speed drilling in metal lathe operations. The superior material and design ensure that the bits maintain sharpness, resist heat buildup, and sustain cutting efficiency even during repetitive or high-speed machining tasks, making them ideal for precision drilling in demanding industrial applications where consistent performance is required.