| Customization: | Available |
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| Customized: | Customized |
| Standard: | GB/T |
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Multi-Material Versatility
Designed to drill efficiently through tough materials like stainless steel, alloy steel, cast iron, and other hard metals, this M35 cobalt drill set provides exceptional adaptability for a variety of industrial and construction applications.
Precision Performance
Engineered with sharp cutting edges and balanced flute geometry, these drill bits ensure smooth, accurate drilling with minimal vibration, making them ideal for demanding, repetitive tasks that require high precision.
Enhanced Durability through Heat Treatment
Made from M35 high-speed steel with cobalt infusion, these drill bits undergo advanced heat treatment processes to increase hardness, improve wear resistance, and extend their service life, even in high-temperature conditions.
Multi-Task Functionality
Perfect for a wide range of applications, including electrical installation, metalworking, construction, and general-purpose drilling, this set reduces the need for multiple tools, improving efficiency and boosting productivity.
1)Stainless Steel
2)Mold Steel
3)Copper Alloy
4)Aluminum Alloy
5)Cast Iron
6)PVC
Razor-Sharp Cutting Edge
Constructed from M35 high-speed steel and cobalt alloy, these drill bits provide fast and efficient penetration into tough materials like stainless steel and hardened metals. The design minimizes resistance and edge wear, ensuring prolonged sharpness and smooth drilling.
Anti-Slip Ground Tip
The fully ground tip design guarantees precise positioning and stable entry, reducing the risk of bit walking during high-speed or punchdown drilling tasks. This feature enhances accuracy, especially in demanding applications.
Optimized Chip Evacuation
The advanced spiral flute geometry ensures efficient chip removal, minimizing heat buildup and preventing material clogging, even during extended or high-speed drilling operations. This design allows for continuous, uninterrupted drilling.
Corrosion-Resistant Finish
The polished finish not only improves the drill bit's appearance but also provides excellent corrosion resistance, which helps prolong tool life, particularly in high-humidity or industrial environments where rust can be an issue.
Ergonomic, Balanced Design
With lightweight construction and even weight distribution, these drill bits offer superior handling and control, reducing operator fatigue during prolonged drilling sessions. This design ensures greater comfort and efficiency, making them ideal for various applications.
Available Sizes:
| Specification | Cutting Diameter | Overall length | Blade length |
| 3 | 33mm | 61mm | 3mm |
Superior Wear Resistance & Heat Tolerance
Crafted from M35 cobalt high-speed steel, these drill bits are designed to maintain hardness and sharpness, even under high-temperature and high-friction drilling conditions. This ensures exceptional durability and consistent performance when drilling through tough materials.
Versatile Drilling Performance
These drill bits are ideal for a wide range of materials, including stainless steel, hardened alloys, carbon steel, cast iron, and other difficult-to-machine metals. Their versatility makes them perfect for a variety of industrial and workshop applications, from precision drilling to heavy-duty tasks.
Trusted Multi-Purpose Solution
Designed to meet the needs of both professionals and DIY users, the M35 cobalt drill bits provide reliable, clean, and efficient drilling results. Whether you're working on metal fabrication, construction, maintenance, or installation, these drill bits offer the performance you need for consistent success across various projects.
Advanced Manufacturing Capabilities
CNC Precision Grinding
Ensures consistent flute geometry and sharp tip angles, allowing for smooth, accurate drilling even under repetitive, high-speed conditions. This precision enhances drilling stability and reduces vibration.
Vacuum Heat Treatment
Improves surface hardness and internal toughness, extending the tool life of M35 cobalt drill bits under high-temperature, demanding drilling conditions. This treatment ensures the drill bits maintain their performance over time.
Ultra-Fine Polishing
Minimizes friction and chip adhesion, improving heat dissipation during drilling. This process protects the workpiece surface and prevents material clogging, especially during high-load operations.
Refined Metallurgy & Material Purity
EAF + LF + VD + RS ESR Technology
Utilized to produce ultra-clean M35 cobalt steel, this advanced steelmaking process minimizes impurities and brittleness, resulting in improved reliability under both thermal and mechanical stress for superior tool performance.
Integrated Thermal Optimization
Quenching + Cryogenic Treatment + Tempering
The combination of these heat treatments achieves optimal hardness levels (up to HRC 67), while preserving structural integrity and crack resistance-critical for extended performance in metal drilling applications.
RS ESR Advanced Edge Enhancement
Rapid Solidification ESR
Refines the distribution of carbide and cobalt particles, increasing the cutting edge's strength. This improves heat resistance and wear tolerance, making the drill bit highly durable during deep-hole or high-speed drilling operations.
Customizable Engineering Options
M35-Centric Configuration
Although M2 and M42 are also available, this set emphasizes M35 for its exceptional wear resistance, especially in applications involving stainless steel and high-strength alloys, ensuring extended service life.
Tailored Geometry & Coatings
Options like custom flute lengths, helix angles, and advanced PVD coatings (TiN, TiAlN) can be applied to meet specific material needs, improving durability, chip evacuation, and overall performance.
Key Design Adaptations for M35 Twist Drills
High-Efficiency Flute Design
Engineered for fast chip removal and minimized heat buildup, essential when drilling heat-sensitive materials like stainless steel. This design allows for smoother, uninterrupted drilling.
Optimized Cutting Angles
Tip and helix angles are precisely matched to maximize cutting force while reducing bit wear, improving drilling speed and accuracy.
Application-Tailored Coatings
These drills are compatible with advanced surface coatings, such as TiAlN (for heat resistance) and TiCN (for wear reduction), ensuring extended tool life and consistent performance in challenging environments.
Q1: What makes M35 cobalt drill bits different from regular high-speed steel (HSS) bits?
A: M35 cobalt drill bits contain 5% cobalt, which enhances heat resistance, wear resistance, and edge retention. This makes them ideal for drilling tough materials like stainless steel, hardened alloys, and cast iron, where standard HSS bits might wear out quickly.
Q2: What materials can these M35 cobalt drill bits be used on?
A: These drill bits are designed for use on tough materials such as:
Stainless steel
Alloy steel
Cast iron
Carbon steel
They also work well with aluminum, plastics, and wood in multi-material drilling applications.
Q3: How does the cobalt content improve the drill bit's performance?
A: The cobalt content in M35 steel improves the drill bit's ability to withstand high temperatures, maintain sharpness longer, and resist wear, making it highly effective for demanding and continuous drilling tasks.
Q4: What are the key advantages of the heat treatment used in M35 cobalt drill bits?
A: The advanced heat treatment process enhances the hardness of the drill bits (up to HRC 67), improving wear resistance and making them more durable. It also helps maintain flexibility and crack resistance, which is crucial for heavy-duty metal drilling applications.
Q5: Can I use M35 cobalt drill bits for high-speed drilling?
A: Yes, M35 cobalt drill bits are designed for high-speed drilling applications. The cobalt alloy ensures the drill bits retain their sharpness and efficiency even at high speeds, allowing for fast material removal without compromising performance.
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