| Customization: | Available |
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| Customized: | Customized |
| Standard: | GB/T |
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Wide Application Range
These M35 cobalt drill bits are designed for versatility and are highly effective on stainless steel, alloy steel, cast iron, and other tough-to-machine metals. Their broad adaptability makes them perfect for industrial and construction tasks, offering reliable performance across various materials.
High-Precision Drilling
The sharp cutting edges and optimized flute design ensure accurate, clean holes with minimal chatter. These drill bits are ideal for repetitive, high-demand drilling tasks where precision and consistency are key.
Thermally Enhanced for Strength
Crafted with advanced heat treatment and cobalt-alloyed high-speed steel (HSS), these drill bits are built to resist wear and maintain cutting efficiency even under high-temperature conditions. This thermally enhanced design ensures long-lasting durability.
Cross-Industry Utility
These M35 twist drill bits are designed to meet the needs of professionals in industries such as electrical, metal fabrication, and structural work. They reduce the need for frequent tool changes by covering a broad range of tasks within one set, increasing efficiency and productivity.
1)Stainless Steel
2)Mold Steel
3)Copper Alloy
4)Aluminum Alloy
5)Cast Iron
6)PVC
Razor-Sharp Cutting Edge
Manufactured with M35 high-speed steel and cobalt alloy, these drill bits provide fast and efficient penetration into stainless steel, alloy steel, cast iron, and other tough materials. The design minimizes resistance and reduces edge wear, ensuring sharpness and prolonged performance.
Anti-Slip Ground Tip
The fully ground tip design ensures precise positioning and stable entry, reducing bit walking during high-speed or punchdown drilling tasks. This ensures greater accuracy and control during drilling operations.
Optimized Chip Evacuation
Advanced spiral flute geometry facilitates smooth chip removal, preventing heat buildup and material clogging during continuous use. This feature ensures efficient, uninterrupted drilling, even in demanding applications.
Corrosion-Resistant Finish
The polished finish not only improves the drill bits' appearance but also provides enhanced rust resistance, extending tool life. This feature is particularly beneficial in high-humidity or industrial environments where corrosion is a concern.
Ergonomic, Balanced Design
Designed with lightweight construction and even weight distribution, these drill bits offer better handling, reducing operator fatigue. The balanced design allows for greater control, making them ideal for extended drilling sessions across a variety of 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 engineered to maintain their hardness and sharpness even under high-temperature and high-friction drilling conditions. They deliver long-lasting performance in tough, demanding applications.
Versatile Drilling Performance
Ideal for drilling through stainless steel, hardened alloys, carbon steel, cast iron, and other difficult-to-machine materials, these drill bits are the perfect tool for a variety of industrial, commercial, and workshop tasks. Their versatility makes them reliable for many challenging materials.
Trusted Multi-Purpose Solution
Designed to meet the needs of both professionals and DIY users, this M35 cobalt drill bit set provides consistent, clean, and efficient results. It's perfect for metal fabrication, construction, maintenance, and installation tasks, helping you get the job done with ease and precision.
Advanced Manufacturing Capabilities
CNC Precision Grinding
Ensures consistently sharp flute geometry and precise tip angles, delivering smooth, accurate drilling even under repetitive, high-speed conditions. This process improves performance and reduces vibration, ensuring consistent results.
Vacuum Heat Treatment
Enhances the surface hardness and internal toughness of M35 cobalt drill bits, providing extended tool life and superior durability under high-stress and demanding conditions. This treatment ensures the drill bits stay sharp and efficient even in harsh environments.
Ultra-Fine Polishing
Minimizes friction and prevents chip adhesion, improving heat dissipation and protecting both the drill bit and workpiece surfaces during high-load drilling operations. This enhances the overall performance and longevity of the tool.
Refined Metallurgy & Material Purity
EAF + LF + VD + RS ESR Technology
Advanced steelmaking techniques produce clean, high-toughness M35 cobalt steel by reducing internal impurities and brittleness. This leads to improved reliability and performance under thermal and mechanical stress, ensuring greater longevity for the drill bits.
Integrated Thermal Optimization
Quenching + Cryogenic Treatment + Tempering
This combination of heat treatments optimizes the drill bits' hardness (up to HRC 67), while maintaining structural integrity and crack resistance. This is critical for heavy-duty metal drilling tasks and ensures consistent performance in demanding applications.
RS ESR Advanced Edge Enhancement
Rapid Solidification ESR
Refines the carbide and cobalt particle distribution, strengthening the cutting edge and improving resistance to heat softening and wear, particularly during deep or high-speed drilling operations.
Customizable Engineering Options
M35-Centric Configuration
While M2 and M42 options are available, this drill bit set emphasizes M35 for its superior wear resistance, especially when drilling through stainless steel and high-strength alloys, offering extended tool life.
Tailored Geometry & Coatings
Custom flute lengths, helix angles, and advanced PVD coatings (like TiN, TiAlN) can be applied to improve durability, chip removal, or performance for specific materials and cutting conditions.
Key Design Adaptations for M35 Twist Drills
High-Efficiency Flute Design
Optimized for fast chip removal and minimal heat buildup, ensuring efficient drilling even in dense or heat-sensitive materials such as stainless steel. This design helps prevent overheating and ensures smooth operation.
Optimized Cutting Angles
The tip and helix angles are precisely engineered to maximize cutting force and reduce bit wear, increasing drilling speed while maintaining precision and extending tool life.
Application-Tailored Coatings
The drill bits are compatible with advanced coatings like TiAlN (for heat resistance) and TiCN (for wear resistance). These coatings ensure extended tool life, especially in tough environments that require consistent performance under high temperatures or heavy loads.
Q1: What makes M35 cobalt twist drill bits different from regular HSS bits?
A: M35 cobalt twist drill bits contain 5% cobalt, which enhances their heat resistance, wear resistance, and edge retention. This makes them ideal for drilling tough materials like stainless steel, hardened alloys, and cast iron, providing superior performance compared to standard HSS bits.
Q2: What materials can these M35 cobalt drill bits handle?
A: These drill bits are designed to drill through tough materials, including stainless steel, alloy steel, cast iron, carbon steel, and other hard-to-machine metals. They are also effective for drilling softer materials like aluminum and wood in multi-material applications.
Q3: Are the M35 drill bits available in different sizes?
A: Yes, our M35 cobalt twist drill bits are available in a variety of sizes, ranging from 1mm to 13mm, with 1mm increments. We also offer custom sizes upon request to meet your specific project requirements.
Q4: Can these drill bits be used for high-speed drilling?
A: Yes, M35 cobalt twist drill bits are specifically designed for high-speed drilling. The cobalt alloy ensures that the bits retain their sharpness and resist heat buildup, even under demanding high-speed conditions.
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