| Customization: | Available |
|---|---|
| Customized: | Customized |
| Standard: | GB/T |
|
Still deciding? Get samples of $ !
Order Sample
|
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
|---|
| Payment Methods: |
|
|---|---|
| Support payments in USD |
| Secure payments: | Every payment you make on Made-in-China.com is protected by the platform. |
|---|
| Refund policy: | Claim a refund if your order doesn't ship, is missing, or arrives with product issues. |
|---|
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
All-Purpose Industrial Compatibility
Specifically built for stainless steel, alloy steel, cast iron, and other hard metals, this M35 cobalt drill set is ideal for heavy-duty industrial, workshop, and on-site construction use.
High-Precision Cutting Performance
Each bit features sharpened cutting edges and optimized flute geometry, ensuring clean, low-vibration drilling-perfect for consistent, repetitive use in demanding environments.
Heat-Treated for Long-Term Durability
Crafted from M35 cobalt high-speed steel, the bits undergo advanced heat treatment, increasing hardness and resistance to wear during high-temperature or high-pressure operations.
Versatile Application Range
Designed for metal fabrication, electrical work, construction, and maintenance, this set supports multi-task operations with fewer tool changes-boosting work efficiency and tool value.
1)Stainless Steel
2)Mold Steel
3)Copper Alloy
4)Aluminum Alloy
5)Cast Iron
6)PVC
Razor-Sharp Cutting Edge
Manufactured from M35 cobalt high-speed steel, these drill bits provide quick, clean penetration into tough materials like stainless steel, minimizing resistance and maintaining edge sharpness over time.
Stabilized Ground Tip Design
The fully ground tip allows for precise positioning and controlled entry, helping to prevent bit walking during high-speed or impact drilling on hard surfaces.
Optimized Chip Evacuation System
Featuring refined spiral flute geometry, the design enables smooth chip flow, reduces heat buildup, and prevents clogging-ideal for continuous drilling in industrial settings.
Durable, Corrosion-Resistant Finish
The polished surface enhances anti-rust properties, extends tool life, and retains a clean, professional look-even in high-humidity or metalworking environments.
Ergonomic, Well-Balanced Construction
Lightweight and evenly balanced, the drill bits offer comfortable handling, reduced operator fatigue, and greater control-essential for extended or high-frequency operations.
Industrial-Grade M35 Drill Bits - Multi-Use, Precision Engineering
1. Industrial-Strength Heat & Wear Resistance
Built from premium M35 cobalt high-speed steel, these bits retain hardness and sharpness under intense heat and pressure, making them ideal for continuous use in demanding environments.
2. Versatile for Multiple Metal Types
Optimized for stainless steel, alloy steel, carbon steel, and cast iron, this set supports a wide range of metalworking, fabrication, and industrial maintenance tasks with reliable cutting performance.
3. Precision Drilling Across Applications
Whether for professional workshops, factory use, or advanced DIY, these bits provide clean, stable, and consistent results-perfect for construction, repairs, installation, or fabrication work.
Q1: What materials and coatings are available for your M35 drill bits?
Materials: Our primary offering includes M35 cobalt high-speed steel, known for its excellent wear resistance and heat tolerance. Other options such as M2, M42, and powder metallurgy HSS are also available for specific needs.
Coatings: We offer TiN (general purpose), TiAlN (for high-heat applications), and TiCN (for maximum surface hardness). Uncoated versions are available for cost-sensitive or custom-use cases.
Note: Using the right coating significantly extends tool life, especially when drilling materials like stainless steel or titanium alloys.
Q2: What causes premature wear or breakage in drill bits?
Operational factors: Excessive feed rate, insufficient cooling, or dry drilling are leading causes. Always apply proper cutting fluid to reduce heat and friction.
Selection errors: For hard materials such as stainless steel or heat-treated steel, M35 or coated drills are strongly recommended over general-purpose HSS.
Support: We provide technical guidance and consider replacements in cases of manufacturing-related failures (non-user damage).
Q3: How can I tell when it's time to replace the drill bit?
Signs of wear include:
Surface finish degradation
Hole diameter deviation greater than 0.1mm
Unusual noise or excessive vibration during drilling
Tip: Use a magnifier to inspect for edge rounding or micro-chipping during regular maintenance.
Q4: What helix angle is suitable for different materials?
30°-35° (Standard Helix): Best for carbon steel, alloy steel, and cast iron
40°-45° (High Helix): Ideal for aluminum, copper, and other soft materials
10°-20° (Low Helix): Recommended for hardened steel or heat-treated metals to reduce chatter and enhance stability
Q5: Can I order non-standard or custom-designed drill bits?
Yes. We offer fully customized M35 drill bit solutions, including:
Step drills
Special point geometries
Internal coolant holes
Customized flute lengths, angles, or shank styles
(Custom designs require technical drawings or specifications.)
){kind=link}