Drilling hardened steel needs the right drill bits to work well and last long. Choosing the best drill bits can save time and effort on tough metal projects.
Hardened steel is very strong and can wear out regular drill bits quickly. Using cobalt and titanium-coated bits helps drill through this tough material smoothly. These bits stay sharper longer and resist heat better. Sets like BOSCH CO14B, DEWALT Titanium Nitride, and M35 Cobalt offer durable options for drilling stainless steel, cast iron, and titanium.
Having the right size and type makes drilling easier and prevents damage to your tools. This guide covers top drill bit sets for hardened steel to help you pick the best fit for your needs.
Bosch Co14b 14-piece Assorted Set
The BOSCH CO14B 14-Piece Assorted Set is ideal for professional tradespeople and DIY enthusiasts who require reliable and durable drill bits for tough materials like stainless steel, cast iron, titanium, and light-gauge metals. If you need a versatile set that provides precision and longevity in demanding drilling applications, this set is designed to meet your needs.
Pros:
- Includes 14 cobalt M42 metal drill bits suitable for heavy-duty materials.
- Three-flat shank design ensures secure grip and reduces slippage in the drill chuck.
- Comes with a convenient included case for organized storage and portability.
- Constructed from high-quality cobalt steel for enhanced durability and heat resistance.
- Perfect for drilling through hard metals like titanium and stainless steel efficiently.
Cons:
- Set weight of 1.0 pounds may be slightly heavier compared to plastic-cased sets.
- Dimensions not specified, which may affect storage space planning.
The BOSCH CO14B drill bit set features M42 cobalt steel construction which is known for its superior hardness and ability to maintain sharpness under high temperatures. This makes the bits ideal for drilling through tough metals without frequent replacement or performance degradation. The three-flat shank design enhances stability in the chuck, reducing the risk of slipping during use and improving drilling accuracy. This is particularly beneficial for professionals who require precision in their work.
Additionally, the set’s included case offers excellent organization, making it easy to transport and store the bits safely. This ensures that users can quickly select the appropriate drill bit size for their project without hassle. Overall, the BOSCH CO14B set combines robust construction with user-friendly features to deliver a reliable drilling solution for metalworking tasks, helping users achieve clean and efficient results every time.
Toolant Cobalt Drill Bit Set
The toolant Cobalt Drill Bit Set for Metal and Steel (Pro) is ideal for professional mechanics, metalworkers, and DIY enthusiasts who frequently work with hardened metals and stainless steel. If you need a durable and efficient drill bit set that handles tough materials with precision, this set is designed to meet your needs.
Pros:
- Includes 21 pieces ranging from 1/16″ to 1/2″ for versatile drilling options
- Titanium Aluminum Nitride (TiAlN) coating enhances durability and heat resistance
- Cobalt alloy composition ensures superior strength and longevity
- Bullet point tip design minimizes walking and improves drilling accuracy
- Dark blue finish provides corrosion resistance and easy identification
Cons:
- May require higher drilling speed adjustments compared to standard bits
- Not ideal for softer materials like wood or plastic due to specialized coating
The toolant Cobalt Drill Bit Set features a robust TiAlN coating that significantly increases the bits’ resistance to heat and wear, making them perfect for prolonged use on tough materials like hardened metal and stainless steel. The inclusion of 21 different sizes offers great flexibility, allowing users to select the perfect bit for various drilling tasks without needing multiple sets.
Additionally, the bullet point tip design provides precise centering and reduces bit walking, which enhances drilling accuracy and efficiency. The cobalt alloy construction not only improves the lifespan of each bit but also allows for faster drilling speeds compared to traditional drill bits. This set is a reliable choice for anyone looking to upgrade their toolkit with professional-grade drill bits that deliver consistent performance.
M35 Cobalt Drill Bit Set 20pcs
The M35 Cobalt Drill Bit Set 20PCS (1/16″-1/2″) is ideal for professionals and DIY enthusiasts who frequently work with hardened metals and require precision and durability. If you need a reliable drill bit kit that can handle tough materials without dulling quickly, this set is perfect for you. Whether you’re a mechanic, metalworker, or serious hobbyist, this kit offers the right combination of size variety and high-speed performance.
Pros:
- Contains 20 pieces ranging from 1/16″ to 1/2″ for versatile drilling needs
- Made from M35 high-speed steel with cobalt for enhanced durability
- Jobber length design provides balance between reach and rigidity
- Includes a sturdy index storage case for organized and easy access
- Specifically designed for drilling through hardened metal efficiently
Cons:
- May require a power drill with variable speed for optimal performance
- Not ideal for use on softer materials as it may cause over-drilling
The M35 Cobalt Drill Bit Set features premium high-speed steel infused with cobalt, making it highly resistant to heat and wear during intensive drilling sessions. This means users can expect longer bit life and consistent performance even when working with tough metals. The jobber length design strikes a perfect balance, allowing for precise drilling without excessive bit flex or breakage. The wide range of sizes included ensures that users have the right tool for various project requirements.
Additionally, the included index storage case keeps the drill bits organized, preventing loss and making it easy to select the correct size quickly. This feature is especially beneficial for professionals who need efficiency on the job. Overall, this drill bit set offers a combination of strength, versatility, and convenience, making it a valuable addition to any toolkit focused on metalworking.
Dewalt Drill Bit Set
The DEWALT Titanium Nitride Coated Drill Bit Set, Pilot Point, 21-Piece (DW1361) is ideal for both professional contractors and DIY enthusiasts who require durable and precise drilling tools. If you need a versatile set that can handle various materials with efficiency and longevity, this drill bit set is an excellent choice. Its robust construction and pilot point design make it perfect for those who value quality and accuracy in their drilling projects.
Pros:
- Durable titanium nitride coating extends bit life and reduces wear.
- Pilot point design ensures accurate starts and reduces walking.
- Comes in a convenient 21-piece set covering a wide range of sizes.
- Lightweight and compact with dimensions of 8.75 x 1.375 x 8.75 inches for easy storage.
- Trusted DEWALT brand known for quality and reliability.
Cons:
- May wear faster on extremely hard materials despite the coating.
- Limited to pilot point bits; not suitable for specialized drilling needs.
The DEWALT Titanium Nitride Coated Drill Bit Set features a specialized pilot point tip that helps in precise drilling by preventing the bit from slipping off the target area. This design is especially beneficial when working on delicate surfaces or starting holes in hard materials. The titanium nitride coating not only enhances the durability of each bit but also reduces friction, allowing for smoother drilling and less heat buildup during use. These features collectively contribute to improved performance and longer bit life.
With 21 pieces included, this set provides a versatile range of drill bit sizes, making it suitable for various applications from woodworking to metalworking. Its lightweight design and compact case make it easy to carry and organize, which is a significant advantage for professionals on the go. Overall, this drill bit set offers a combination of precision, durability, and convenience that benefits users looking for a reliable and efficient drilling solution.
Sinyeenglon Cobalt Drill Bit Set
The Sinyeenglon Cobalt Drill Bit Set is ideal for professional tradespeople, DIY enthusiasts, and metalworkers who require durable and precise drill bits for working on hardened metal and stainless steel. If you need a comprehensive assortment of high-quality drill bits to tackle tough materials with ease, this set is designed to meet your needs.
Pros:
- Includes 99 pieces covering sizes from 1/16″ to 3/8″ for versatile drilling applications
- Made from M35 high speed steel with cobalt for enhanced hardness and durability
- Twist jobber design ensures efficient cutting and longer tool life
- Compact plastic index storage case keeps bits organized and easily accessible
- Perfectly suited for drilling through hardened metals and stainless steel without dulling quickly
Cons:
- Some users may find the storage case less durable under heavy usage
- Not ideal for drilling softer materials where cheaper bits might suffice
The Sinyeenglon Cobalt Drill Bit Set stands out due to its high-quality M35 high speed steel construction enhanced with cobalt. This combination provides exceptional heat resistance and toughness, allowing the bits to maintain sharpness when drilling through challenging materials like hardened steel and stainless steel. The twist jobber design further optimizes cutting efficiency and chip removal, ensuring smoother drilling and less effort for the user.
Additionally, the set’s wide range of sizes from 1/16″ to 3/8″ accommodates diverse project requirements, making it a versatile choice for metalworking tasks. The included plastic index storage case not only protects the drill bits but also helps users quickly find the right size, improving workflow and convenience. Overall, this set delivers professional-grade performance and durability, making it a valuable addition to any toolbox for heavy-duty drilling needs.
Nordwolf 5-piece M35 Cobalt Stubby Drill Bit Set
The NordWolf 5-Piece M35 Cobalt Stubby Drill Bit Set is ideal for professional tradespeople and DIY enthusiasts who frequently work with stainless steel and other hard metals. If you need durable, high-performance drill bits that fit in tight spaces and are compatible with quick chucks and impact drivers, this set is designed specifically for you.
Pros:
- Made from M35 cobalt for exceptional durability and heat resistance
- Stubby design allows drilling in confined spaces
- Includes common SAE sizes ranging from 3/32″ to 5/16″
- 1/4″ hex shank ensures quick and secure chucking
- Comes in a compact storage case for easy organization and transport
Cons:
- Limited to smaller drill bit sizes, not suitable for larger diameter drilling
- Relatively short length may not be ideal for deep drilling tasks
The NordWolf M35 cobalt drill bit set stands out due to its high-quality cobalt construction, which provides excellent wear resistance and maintains sharpness even when drilling through tough materials like stainless steel. The stubby design is particularly beneficial for users who often encounter cramped or awkward spaces where standard-length bits cannot reach. This makes it an excellent choice for automotive work, metal fabrication, and other precision drilling applications.
Additionally, the inclusion of a 1/4″ hex shank allows for quick bit changes with impact drivers and quick chucks, improving efficiency on the job. The compact storage case keeps the bits organized and protected, ensuring they remain in top condition and are easy to carry. Overall, this set offers a combination of durability, convenience, and versatility that caters well to professionals and serious DIYers working with hard metals.
Crosstar M35 Cobalt Drill Bit Set
The Crosstar M35 Cobalt Drill Bit Set is ideal for professionals and DIY enthusiasts who frequently work with hardened metal and stainless steel. If you require durable, high-performance drill bits that can withstand tough materials without dulling quickly, this set is designed to meet your needs efficiently. Its wide range of sizes from 1/16″ to 1/2″ makes it versatile for various drilling tasks.
Pros:
- Features a durable TiAlN (Titanium Aluminum Nitride) coating for enhanced heat resistance and longer lifespan.
- Three-flute design improves chip removal and drilling speed.
- Wide size range (21 pieces) covers multiple drilling requirements.
- High-quality M35 cobalt steel ensures strength and toughness.
- Suitable for drilling through hardened metals and stainless steel without frequent bit changes.
Cons:
- May be more expensive compared to standard drill bit sets.
- Black color coating can show wear over time.
The Crosstar M35 Cobalt Drill Bit Set stands out with its premium TiAlN coating, which significantly reduces heat buildup during drilling, allowing for prolonged use without compromising bit integrity. This feature is particularly beneficial when working with tough materials like stainless steel and other hardened metals, where heat can quickly degrade ordinary drill bits. The three-flute design enhances chip evacuation, reducing clogging and ensuring smooth, efficient drilling.
With 21 precision-engineered bits ranging from 1/16″ to 1/2″, this set offers versatility for a variety of projects. The high-grade M35 cobalt steel construction provides excellent durability and resistance to wear, making it a reliable choice for both professionals and serious hobbyists. Whether you’re performing detailed metalwork or general repairs, this drill bit set delivers consistent, high-quality results.
Crosstar M35 Cobalt Drill Bit Set
The Crosstar M35 Cobalt Drill Bit Set is ideal for professional tradespeople and DIY enthusiasts who require durable and high-performance drill bits for tough materials. If you often work with hardened steel, stainless steel, or cast iron, this set is designed to provide precision and longevity, making it perfect for metalworkers, mechanics, and serious hobbyists.
Pros:
- Includes 21 pieces ranging from 1/16″ to 1/2″ for versatility
- Titanium coated for enhanced durability and heat resistance
- Self-centering bullet point tip ensures accurate drilling without wandering
- High-speed jobber bits designed for efficient cutting of hard metals
- Black finish that reduces friction and increases bit lifespan
Cons:
- May require proper cooling techniques during extended use to prevent overheating
- Not ideal for drilling softer materials like wood or plastic
The Crosstar M35 Cobalt Drill Bit Set stands out due to its high-quality cobalt alloy construction, which provides exceptional hardness and heat resistance. The titanium coating further enhances these attributes, making the bits capable of maintaining sharpness even under demanding conditions. The set includes a wide range of sizes, which allows users to tackle a variety of drilling tasks without needing to purchase additional bits.
The innovative self-centering bullet point tip design ensures that each hole is drilled with precision, reducing the risk of bit slippage and material damage. This feature, combined with the high-speed jobber bit design, allows for fast and clean drilling in tough metals like stainless steel and cast iron. Overall, this drill bit set offers excellent value for those who need reliable, long-lasting tools for metalworking projects.
Macxcoip Cobalt Drill Bit Set
The MACXCOIP Cobalt Drill Bit Set is ideal for professionals and DIY enthusiasts who frequently work with tough materials such as hardened metals, stainless steel, cast iron, and various wooden plastics. If you need a reliable, versatile drill bit set that combines durability with precision, this 29-piece collection is a perfect choice for your toolkit.
Pros:
- Includes 29 high-quality M35 cobalt drill bits suitable for drilling through hard metals and other tough materials.
- Comes with a sturdy metal index storage box for organized and convenient storage.
- Wide size range from 1/16″ to 1/2″ to accommodate various drilling needs.
- Constructed with high-speed steel enhanced with cobalt for superior heat resistance and longer life.
- Compact dimensions (4.33″ height, 6.3″ width, 15.35″ length) make it easy to carry and store.
Cons:
- May be overkill for casual users who only need to drill soft materials.
- The metal storage box, while durable, can be a bit bulky for some toolboxes.
The MACXCOIP Cobalt Drill Bit Set is engineered with M35 high-speed steel infused with cobalt, making these drill bits exceptionally durable and capable of maintaining sharpness even when drilling through hardened metals and stainless steel. This composition enhances heat resistance, allowing users to work efficiently without frequent bit replacements or overheating concerns. The comprehensive range of sizes from 1/16″ to 1/2″ ensures versatility for various projects, whether precision drilling or larger holes are required.
Additionally, the inclusion of a robust metal index storage box helps users keep their drill bits organized and protected, minimizing downtime searching for the right size. Its compact design makes it portable while also fitting neatly in workbenches or toolkits. Overall, this set offers excellent value for professionals and serious hobbyists who demand reliability, longevity, and performance in their drill bits.
Macxcoip Cobalt Drill Bit Set
The MACXCOIP Cobalt Drill Bit Set is ideal for professional craftsmen, DIY enthusiasts, and anyone who frequently works with a variety of tough materials such as hardened metal, stainless steel, cast iron, wood, and plastic. This set is perfect for those who need reliable, durable, and precise drill bits for both heavy-duty and everyday drilling tasks.
Pros:
- Includes 13 pieces of high-quality M35 high speed steel drill bits for versatility
- Designed with jobber length for optimal balance between reach and rigidity
- Excellent durability and heat resistance for drilling through hardened metal and other tough materials
- Comes with a convenient index storage case for organized and safe storage
- Wide size range from 1/16″ to 1/4″ to fit multiple project requirements
Cons:
- Smaller sizes may wear out faster when used on extremely hard materials
- Not suitable for very large diameter drilling tasks
The MACXCOIP Cobalt Drill Bit Set features premium M35 high speed steel construction, giving it enhanced hardness and heat resistance compared to standard drill bits. This makes it highly effective for drilling through tough materials like stainless steel and cast iron without losing sharpness quickly. The jobber length design provides an ideal balance, offering enough length for deeper holes while maintaining rigidity to reduce bit wobble and improve accuracy.
Additionally, the set’s inclusion of 13 different sizes ranging from 1/16″ to 1/4″ ensures versatility for various drilling projects, whether you’re working on metal, wood, or plastic. The handy index storage case keeps the bits organized and protected, making it easy to select the right size and extend the life of the bits. Overall, this drill bit set is a valuable investment for anyone seeking durability, precision, and convenience in their tool collection.
Frequently Asked Questions
What Drill Bit Materials Work Best For Hardened Steel?
Cobalt and M35 high-speed steel drill bits are ideal for hardened steel. They resist heat and maintain sharpness longer. Titanium coatings enhance durability and reduce friction, improving performance and lifespan.
How Do Titanium Coatings Improve Drill Bits?
Titanium coatings, like TiAlN, reduce heat buildup during drilling. They increase bit hardness and wear resistance. This results in cleaner holes and longer bit life, especially when drilling tough metals like hardened steel.
Why Choose Cobalt Drill Bits For Stainless Steel?
Cobalt drill bits offer superior heat resistance and strength. They cut through stainless steel and hardened metals efficiently. Their durability reduces breakage and wear during heavy-duty drilling tasks.
Are Stubby Cobalt Drill Bits Better For Tight Spaces?
Yes, stubby cobalt bits are shorter and provide better control. They fit into confined areas and reduce wobbling. This makes them perfect for precision drilling in tight spaces on hard metals.
What Sizes Are Included In Typical Cobalt Drill Bit Sets?
Most cobalt sets include sizes from 1/16″ to 1/2″. Larger sets may offer up to 99 pieces covering a wide range. This variety ensures you have the right bit for any hardened steel drilling job.
How Important Is The Drill Bit Shank Type?
Three-flat or hex shanks provide better grip and reduce slipping. They improve torque transfer and stability during drilling. Choosing the right shank enhances accuracy and prevents damage to both bit and material.
Conclusion
Choosing the right drill bits makes drilling hardened steel easier and more efficient. Cobalt and titanium-coated bits stand out for strength and durability. Sets like BOSCH CO14B and DEWALT offer good variety and reliable performance. Smaller sets, such as NordWolf’s stubby bits, are perfect for tight spaces.
Always pick bits designed for metal to avoid damage and wear. Proper storage cases help keep your tools organized and ready to use. With the right drill bits, your projects will go smoothly and last longer. Remember, quality bits save time and effort when working with tough metals.
Keep these options in mind for the best results in drilling hardened steel.