| Customization: | Available |
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| Customized: | Customized |
| Standard: | GB/T |
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Multi-Material Versatility
Designed to drill through tough materials such as stainless steel, alloy steel, cast iron, and other challenging metals, this M35 cobalt drill set offers outstanding adaptability across a wide range of industrial and construction applications.
Precision Performance
Engineered with sharp cutting edges and balanced flute geometry, each drill bit ensures smooth and accurate drilling with minimal vibration, making them ideal for demanding, repetitive tasks that require high precision.
Enhanced Durability through Heat Treatment
Crafted from M35 high-speed steel with cobalt content, these drill bits undergo advanced thermal processing to enhance hardness, wear resistance, and extend their service life, even under high-temperature and high-load conditions.
Multi-Task Functionality
Perfect for electrical installation, metalworking, construction, and general-purpose drilling, this versatile set reduces the need for frequent tool changes, improving overall efficiency and productivity on the job.
1)Stainless Steel
2)Mold Steel
3)Copper Alloy
4)Aluminum Alloy
5)Cast Iron
6)PVC
Razor-Sharp Cutting Edge
Crafted with M35 high-speed steel and cobalt alloy, these drill bits offer fast and efficient penetration into stainless steel, alloy steel, and other tough materials. Their sharp cutting edge minimizes resistance and reduces edge wear, ensuring consistent performance over time.
Anti-Slip Ground Tip
The fully ground tip design ensures precise positioning and stable entry into materials, minimizing bit walking during high-speed or punchdown drilling tasks. This feature enhances accuracy and helps achieve cleaner holes.
Optimized Chip Evacuation
With advanced spiral flute geometry, these drill bits are designed for smooth chip removal. This reduces friction and heat buildup, preventing clogging and ensuring uninterrupted drilling even during continuous-use tasks.
Corrosion-Resistant Finish
The polished surface not only enhances the drill bits' appearance but also provides rust resistance, significantly prolonging tool life, especially in high-humidity or industrial environments where corrosion is a concern.
Ergonomic, Balanced Design
Designed for ease of use, these drill bits feature a lightweight construction and even weight distribution, offering better handling and greater control. This reduces operator fatigue during extended drilling sessions, improving overall comfort and productivity.
Available Sizes:
| Specification | Cutting Diameter | Overall length | Blade length |
| 4.2 | 47mm | 80mm | / |
Superior Wear Resistance & Heat Tolerance
Crafted from M35 cobalt high-speed steel, these drill bits are specifically engineered to maintain their hardness and sharpness even in high-temperature and high-friction drilling conditions, ensuring long-lasting performance when drilling through tough materials.
Versatile Drilling Performance
Ideal for a wide range of materials, including stainless steel, hardened alloys, carbon steel, cast iron, and other difficult-to-machine metals, this drill bit set is the perfect tool for a variety of industrial and workshop applications, delivering reliable results across multiple tasks.
Trusted Multi-Purpose Solution
Whether you're a professional or a DIY enthusiast, this set provides consistent, clean, and efficient drilling results for metal fabrication, construction, maintenance, and installation tasks. It's a versatile, go-to tool for both large projects and smaller, detailed work.
Advanced Manufacturing Capabilities
CNC Precision Grinding
Ensures consistently sharp flute geometry and tip angles, enabling smooth, accurate drilling, even under high-speed, repetitive conditions. This precision reduces vibrations and enhances overall performance.
Vacuum Heat Treatment
Improves surface hardness and internal toughness, providing M35 cobalt drill bits with a longer tool life in demanding applications. This treatment ensures optimal performance under high-temperature drilling conditions.
Ultra-Fine Polishing
Minimizes friction and chip adhesion, enhancing heat dissipation and protecting the workpiece surfaces during high-load drilling tasks. This ensures cleaner, more efficient drilling over extended periods.
Refined Metallurgy & Material Purity
EAF + LF + VD + RS ESR Technology
Advanced steelmaking techniques are used to produce high-toughness M35 cobalt steel with minimal impurities. This enhances tool reliability under thermal and mechanical stress, contributing to longer tool life and consistent performance.
Integrated Thermal Optimization
Quenching + Cryogenic Treatment + Tempering
These combined heat treatments achieve optimal hardness (up to HRC 67) while maintaining the material's structural integrity and crack resistance, making these drill bits ideal for tough metal drilling tasks.
RS ESR Advanced Edge Enhancement
Rapid Solidification ESR
This process refines carbide and cobalt particle distribution, strengthening the cutting edge to resist heat softening and wear, especially during deep-hole or high-speed drilling applications.
Customizable Engineering Options
M35-Centric Configuration
While M2 and M42 options are available, this drill set emphasizes M35 for superior wear resistance, particularly when drilling through stainless steel and high-strength alloys.
Tailored Geometry & Coatings
We offer custom flute lengths, helix angles, and advanced PVD coatings (such as TiN, TiAlN) to improve durability, chip evacuation, and material-specific performance, ensuring optimal results for every application.
Key Design Adaptations for M35 Twist Drills
High-Efficiency Flute Design
Designed for fast chip removal and minimal heat buildup, this feature is essential when drilling dense or heat-sensitive materials like stainless steel, ensuring smooth and continuous drilling.
Optimized Cutting Angles
Precision-engineered tip and helix angles maximize cutting force and reduce bit wear, improving drilling accuracy and extending the tool's lifespan.
Application-Tailored Coatings
Compatible with advanced coatings like TiAlN (for heat resistance) and TiCN (for wear reduction), these coatings ensure extended tool life, even in the toughest, most demanding environments.
Q1: What makes M35 cobalt drill bits different from regular high-speed steel (HSS) drill bits?
A: M35 cobalt drill bits contain 5% cobalt, which provides superior heat resistance, wear resistance, and edge retention. This makes them ideal for drilling through tough materials like stainless steel, hardened alloys, and cast iron, especially in high-speed and high-pressure drilling conditions.
Q2: What types of materials can these M35 cobalt drill bits be used for?
A: These drill bits are specifically designed for tough materials, including:
Stainless steel
Alloy steel
Cast iron
Carbon steel
Additionally, they perform well with aluminum, plastics, and wood in multi-material job environments.
Q3: Can I use these drill bits for high-speed drilling?
A: Yes, M35 cobalt drill bits are engineered for high-speed drilling. The combination of cobalt and high-speed steel ensures they maintain sharpness and cutting efficiency even at high rotational speeds, allowing for fast and precise drilling.
Q4: Are these M35 cobalt drill bits available in different sizes?
A: Yes, our M35 cobalt drill bits are available in sizes ranging from 1mm to 13mm, with increments of 1mm. We also offer custom sizes and fractional, metric, or letter sizes upon request.
Q5: Can I customize these drill bits for specific drilling tasks?
A: Yes, we offer customization options, including:
Custom flute lengths
Specific helix angles
Advanced PVD coatings (such as TiN, TiAlN, and TiCN) for enhanced durability and performance in specific materials
Simply provide your requirements, and we can tailor the drill bits to meet your needs.
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