10 Best Drill Bits for Hardened Steel – Worth Considering 2026
Selecting the best drill bits for hardened steel is critical for achieving precise results in metalworking. Using the wrong bits can lead to frustration and wasted materials. Understanding the features and capabilities of various drill bits will help make informed choices for your projects.
This guide evaluates the top drill bits specifically designed for hardened steel. Each product is assessed based on features, performance, and value. Readers will gain insights into the best options to meet their needs, ensuring successful drilling experiences in various metalworking applications.
List of Top 10 Best drill bits for hardened steel
| Image | Title | Best For | Link |
|---|---|---|---|
|
Dewalt Titanium Nitride Coated Drill Bit Set, Pilot Point, 21-piece (dw1361) | This drill bit set is perfect for users needing versatility… more | |
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Dewalt Drill Bit Set, 3-flats Shank,14-piece, 135 Degree Split Point, For Pla… | This set is best for casual users and professionals needing… more | |
|
Bestwork 3-flute Cobalt Drill Bit Set, M35 Metal Drill Bits For Metal And Ste… | This set is ideal for professionals requiring durable bits f… more | |
|
Bosch Co14b 14-piece Assorted Set With Included Case – Cobalt M42 Metal Drill… | Ideal for industrial users needing reliable performance in h… more | |
|
Macxcoip Cobalt Drill Bit Set, 13pcs M35 High Speed Steel Jobber Length Drill… | This set is well-suited for hobbyists and casual users looki… more | |
|
Sinyeenglon Cobalt Drill Bit Set For Hardened Metal And Stainless Steel, 99pc… | Best for professionals needing a comprehensive set for vario… more | |
|
Crosstar M35 Cobalt Drill Bit Set For Hardened Metal & Stainless Steel – 21pc… | Ideal for metalworkers seeking precision and durability in t… more | |
|
Toolant Cobalt Drill Bit Set For Metal And Steel (pro), Titanium Aluminum Nit… | Best for both professionals and DIY enthusiasts looking for… more | |
|
Drill America – Kfd29j-pc 29 Piece Heavy Duty High Speed Steel Drill Bit Set … | Ideal for industrial professionals needing a comprehensive a… more | |
|
Macxcoip Cobalt Drill Bit Set, 29pcs M35 High Speed Steel Bits For Hardened M… | This set is perfect for users who need a wide variety of siz… more |
Detailed Reviews
The following section presents the top 10 best drill bits for hardened steel, carefully selected based on durability and performance. Each product review provides detailed insights into specifications and unique features. Expect to learn how these drill bits can enhance your metalworking projects.
Dewalt Titanium Nitride Coated Drill Bit Set, Pilot Point, 21-piece (dw1361)
The DEWALT Titanium Nitride Coated Drill Bit Set offers a comprehensive 21-piece collection for various drilling needs. Priced at $37.99 and rated 4.5/5, it features a titanium nitride coating that enhances durability. The pilot point design allows for cleaner holes and reduced spin.
This set is ideal for professionals and DIY enthusiasts working with metal, wood, and plastic. The tapered web design increases strength and reduces breakage, ensuring longevity. Additionally, the no-spin shanks enhance grip, making these bits suitable for precision drilling in hardened steel.
Pros
- Titanium nitride coating enhances durability and longevity
- Pilot point design ensures cleaner holes with minimal effort
- Tapered web design increases strength and reduces breakage
Cons
- The case may be bulky for compact storage
- Limited to sizes up to 1/2-inch, which may not suit all projects
- Some users may prefer a smaller set for specific tasks
Perfect For:
This drill bit set is perfect for users needing versatility across multiple materials in various projects.
Dewalt Drill Bit Set, 3-flats Shank,14-piece, 135 Degree Split Point, For Pla…
The DEWALT Drill Bit Set features a 14-piece collection with a 135-degree split point design, priced at $14.79. With a 4.5/5 rating, this set excels in preventing walking and ensuring precise drilling. The high-speed steel construction is versatile for plastic, wood, and metal materials.
Ideal for light to moderate drilling tasks, this set is perfect for hobbyists and professionals alike. The black and gold coating prevents rust and wear, while the 3-flats shank design minimizes spin-out during use, enhancing overall drilling efficiency.
Pros
- 135-degree split point reduces walking for accurate drilling
- High-speed steel construction is versatile for various materials
- Black and gold coating prevents rust and wear, extending lifespan
Cons
- Limited to 14 pieces, which may not cover all user needs
- Not specifically designed for hardened steel, limiting its application
- Lower durability compared to cobalt options in tougher materials
Perfect For:
This set is best for casual users and professionals needing versatile bits for various everyday materials.
Bestwork 3-flute Cobalt Drill Bit Set, M35 Metal Drill Bits For Metal And Ste…
Bestwork’s 3-Flute Cobalt Drill Bit Set consists of 17 pieces, priced at $21.97. Rated 4.5/5, this set features an M35 high-speed steel construction with an oxynitride coating for enhanced durability. The unique three-flute design improves chip removal and heat dissipation.
This drill bit set is particularly suited for metalworkers tackling hardened steel and stainless steel projects. The multiple size options ensure versatility, making it a practical choice for diverse drilling tasks. Users can expect efficient performance even under tough conditions.
Pros
- 3-flute design enhances chip removal and heat dissipation
- M35 cobalt construction provides superior durability for hardened materials
- Multiple size options cater to a variety of drilling needs
Cons
- The set may lack some larger sizes for extensive projects
- Oxynitride coating may wear off with heavy usage
- Not ideal for very soft materials due to its focus on hardened steel
Perfect For:
This set is ideal for professionals requiring durable bits for frequent metalworking in hardened materials.
Bosch Co14b 14-piece Assorted Set With Included Case – Cobalt M42 Metal Drill…
The BOSCH CO14B 14-Piece Set includes cobalt M42 drill bits, priced at $39.29. Rated 4.5/5, these bits are designed for drilling in tough materials like stainless steel and cast iron. The enhanced M42 alloy offers a longer lifespan compared to standard bits.
Engineered for durability, this set is perfect for heavy-duty applications. The high-heat resistance makes it suitable for prolonged drilling tasks, while the thick web-helix design adds stability under tough conditions. Users can expect reliable performance in demanding environments.
Pros
- M42 cobalt alloy offers 10x lifespan compared to standard bits
- High-heat resistance supports extended drilling applications
- Thick web-helix design ensures stability in tough materials
Cons
- Higher price point may not suit casual users
- The case may not have sufficient organization for all bits
- Limited to 14 pieces, which may not cover every size requirement
Perfect For:
Ideal for industrial users needing reliable performance in heavy-duty metalworking tasks.
Macxcoip Cobalt Drill Bit Set, 13pcs M35 High Speed Steel Jobber Length Drill…
The MACXCOIP Cobalt Drill Bit Set includes 13 pieces, priced at $8.53. It features M35 high-speed steel construction suitable for hardened metals and wood. Rated 4.5/5, this set offers a variety of sizes, ensuring flexibility for different drilling tasks.
Designed for both metal and wood applications, this drill bit set is efficient for users tackling diverse projects. The quick and efficient cutting capability, paired with a 135-degree point tip, enhances user experience by minimizing walk-off and improving accuracy.
Pros
- M35 cobalt construction provides durability for tough materials
- Quick cutting capability minimizes drilling time and effort
- Compact storage case allows for easy organization and transport
Cons
- Limited number of pieces may not meet extensive needs
- Not the best choice for professional-grade applications
- Durability may be less compared to larger sets with more cobalt content
Perfect For:
This set is well-suited for hobbyists and casual users looking for an affordable yet functional drill bit option.
Sinyeenglon Cobalt Drill Bit Set For Hardened Metal And Stainless Steel, 99pc…
The Sinyeenglon Cobalt Drill Bit Set includes 99 pieces, priced at $64.99. Rated 4.5/5, these M35 high-speed steel bits are designed for hardened metals and stainless steel. The extensive size range ensures that users have the right bit for any task.
This comprehensive set is ideal for professionals needing versatility and durability across various projects. The hardened full grinding process enhances wear resistance, allowing for effective drilling in tough materials. The organized storage case simplifies access to the right size.
Pros
- Extensive size range offers versatility for diverse drilling tasks
- M35 high-speed steel ensures durability and wear resistance
- Well-organized storage case facilitates quick access to bits
Cons
- Higher price may be prohibitive for occasional users
- The large number of pieces may be overwhelming for casual users
- Some sizes may not be frequently needed, leading to wasted space
Perfect For:
Best for professionals needing a comprehensive set for various drilling needs in hardened materials.
Crosstar M35 Cobalt Drill Bit Set For Hardened Metal & Stainless Steel – 21pc…
The Crosstar M35 Cobalt Drill Bit Set features 21 pieces, priced at $39.99. Rated 4.5/5, these bits utilize titanium aluminum nitride coating for extreme heat resistance. The triple-flute design enhances accuracy and efficiency during drilling tasks.
Ideal for tough materials, this set is perfect for users requiring precision in metalworking. The three-flat shank design ensures a secure grip in the chuck, minimizing spin-out during use. Expect reliable performance in demanding applications.
Pros
- TiAlN coating provides extreme heat resistance for prolonged use
- Triple-flute design improves accuracy and chip ejection
- Three-flat shank design eliminates spin-out, ensuring secure drilling
Cons
- Price may be higher than basic drill bit sets
- Limited to 21 pieces, which may not cover every size need
- Some users may find the triple-flute design less familiar
Perfect For:
Ideal for metalworkers seeking precision and durability in their drill bit collection.
Toolant Cobalt Drill Bit Set For Metal And Steel (pro), Titanium Aluminum Nit…
The toolant Cobalt Drill Bit Set includes 21 pieces at a price of $38.24. With a rating of 4.5/5, these bits feature a titanium aluminum nitride coating that enhances durability. The bullet point tip design allows for precise and centered drilling.
This set is designed for users tackling tough materials like hardened steel. The sharp tip minimizes wandering, ensuring accurate results in various applications. Its robust design makes it suitable for both professionals and DIY enthusiasts.
Pros
- Titanium aluminum nitride coating increases surface hardness and durability
- Bullet point tip ensures precise and centered drilling
- Versatile size range accommodates various drilling needs
Cons
- Price may be slightly higher for casual users
- The 21-piece set may include sizes not frequently needed
- Not specifically designed for extremely hard materials compared to specialized sets
Perfect For:
Best for both professionals and DIY enthusiasts looking for durable bits for metal drilling.
Drill America – Kfd29j-pc 29 Piece Heavy Duty High Speed Steel Drill Bit Set …
The Drill America KFD29J-PC set includes 29 heavy-duty high-speed steel drill bits, priced at $73.12. Rated 4.5/5, this extensive collection features a black and gold finish that resists corrosion. The self-centering split point design minimizes the need for pilot holes.
This set caters to industrial users needing a wide range of sizes for different applications. The high-speed steel construction provides excellent wear resistance, ensuring longevity in tough drilling tasks. Users can expect efficient performance even in demanding environments.
Pros
- Includes 29 bits for versatility across various drilling tasks
- Black and gold finish enhances durability and corrosion resistance
- Self-centering design facilitates accurate drilling without pilot holes
Cons
- Higher price point may not appeal to casual users
- The bulkiness of the case may hinder portability
- Some sizes may not be frequently used, leading to wasted space
Perfect For:
Ideal for industrial professionals needing a comprehensive and durable drill bit set for various drilling projects.
Macxcoip Cobalt Drill Bit Set, 29pcs M35 High Speed Steel Bits For Hardened M…
The MACXCOIP Cobalt Drill Bit Set features 29 pieces, priced at $49.98. Rated 4.5/5, this set includes M35 high-speed steel bits suitable for hardened metals and plastics. The extensive size range enhances versatility for users tackling various projects.
Designed for both professionals and hobbyists, this set offers efficient cutting performance. The 135-degree point tip enhances self-centering capabilities, reducing walk-off during use. Users will appreciate the organized storage box for easy access and management of bits.
Pros
- Extensive size selection meets diverse drilling needs
- M35 high-speed steel provides durability for hardened materials
- Organized storage box simplifies access to various bits
Cons
- Price may be higher than basic sets
- Some sizes may not be frequently needed, leading to potential waste
- Durability may not match premium sets in extreme conditions
Perfect For:
This set is perfect for users who need a wide variety of sizes for different drilling tasks.
Buying Guide
When purchasing the best drill bits for hardened steel, several factors must be considered. Understanding the material and type of work is essential for making informed decisions. This section highlights key considerations to guide users in selecting the most suitable drill bits.
Material Type
The type of material being drilled significantly impacts the choice of drill bit. Cobalt and titanium coatings provide enhanced durability for hardened steel. It’s essential to match the drill bit material with the hardness of the workpiece.
Bit Size and Range
Different projects may require various bit sizes, so consider sets that offer a wide range. Having multiple sizes ensures versatility in handling diverse tasks. Always check the size options included in the set before purchasing.
Coating and Finish
Coatings like titanium nitride or TiAlN enhance drill bit longevity and performance. These coatings reduce friction and heat buildup, improving efficiency during drilling. Selecting bits with quality coatings is crucial for prolonged usage in tough materials.
Frequently Asked Questions
What are the best drill bits for hardened steel?
The best drill bits for hardened steel are typically made from cobalt or high-speed steel with special coatings. These materials provide the necessary hardness and durability for effective drilling.
What is the price range for quality drill bits?
Quality drill bits for hardened steel typically range from around $8 to $74, depending on the material and number of pieces. Higher-end sets may offer advanced features and coatings.
What features should I look for in drill bits?
Look for features like high-speed steel construction, coatings for durability, and specific point designs that enhance accuracy. These elements contribute to effective drilling performance.
Are there drill bits suitable for beginners?
Yes, many drill bits are designed for beginners and offer user-friendly features. Look for sets with a variety of sizes and easy-to-use designs for effective learning.
How do I maintain drill bits for durability?
To maintain drill bits, keep them clean and dry after use. Store them in a protective case to prevent damage and ensure they remain sharp for longer periods.
Conclusion
Choosing the right drill bits for hardened steel is essential for achieving optimal results in metalworking. Consider the features and specifications carefully to ensure they meet your needs. Investing in quality bits will enhance performance and efficiency in your projects.
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