Best Drill Bit To Drill Through Steel (2025 Update)

Introducing the Cobalt Steel Twist Drill Bit Set – a versatile and durable tool designed for efficient metalworking. This set is manufactured from M35 cobalt steel, a hardened heat-resistant alloy that guarantees superior performance. With the addition of molybdenum and cobalt, these drill bits offer a Rockwell hardness of up to 67, ensuring faster cutting and an extended lifespan compared to average HSS drill bits.

In this set, you will find 40 fractional inch bits made from M35 cobalt steel. The set includes 10 pieces each of 3/64", 1/16", 5/64", and 3/32" drill bits. All the bits are meticulously manufactured to meet the German DIN338 standard, ensuring precision and reliability. The set comes neatly packed in a convenient plastic bag, making it easy to store and transport.

These drill bits excel in cutting through hard metals with a hardness level of less than HRC38°. They are particularly effective on tough materials like stainless steel and cast iron. However, they can also be used on softer metals such as copper and aluminum. Please note that these drill bits are not suitable for use on hardened steel or high carbon steel. If you encounter difficulty penetrating certain materials, we recommend adjusting the RPM to optimize performance.

To help you maximize the potential of your Cobalt Steel Twist Drill Bit Set, we have included a downloadable user guide. This comprehensive guide provides valuable tips on drilling metals and includes an RPM chart for several common types of metals. Based on our extensive research and customer feedback, following these tips will greatly enhance your drilling experience.

The drill bit lengths in this set are as follows: 3/64" (1.73"), 1/16" (1.89"), 5/64" (2.01"), and 3/32" (2.24"). These lengths are carefully chosen to cater to various drilling needs, allowing you to tackle a wide range of projects with ease.

Invest in the Cobalt Steel Twist Drill Bit Set today and experience the power and durability of M35 cobalt steel. Whether you're a professional metalworker or a DIY enthusiast, this set is a valuable addition to your toolkit. Don't settle for average drill bits when you can have exceptional performance and longevity. Upgrade your drilling experience with the Cobalt Steel Twist Drill Bit Set.

Introducing the High Speed Steel Twist Drill Straight Shank Cobalt Twist Drill Hand Drill Hole Drill Set. This set is made from high-quality materials to ensure durability and long-lasting performance.

One of the standout features of this set is that it does not require a center punch. The 135° Quick-Cut points are self-centering, allowing for quick and easy penetration with less pressure. This means that you can start drilling right away without the need for additional tools or preparations. Additionally, these points prevent the drill from "walking" or "wandering" during use, ensuring accurate and precise drilling every time.

Another advantage of this set is its extreme heat resistance. It is designed to be used and operated at 1500 RPM or greater for maximum efficiency. This makes it ideal for heavy-duty drilling tasks that involve high-speed rotations. The straight shank design allows for a secure and firm grip, ensuring accurate centering and reducing the risk of slipping during drilling. It is compatible with standard drill chucks and regular round collet chucks, making it versatile and easy to use with different types of drilling equipment.

The materials used in this drill set are specifically chosen for their cutting capabilities. It is particularly successful in cutting through wood, rubber, bamboo, and plastic. However, it is important to note that the manufacturer does not recommend using these drill bits for cutting hard metals such as stainless steel and cast iron. For optimal results and to prevent damage to the bits, it is best to use them on the suggested materials.

In this package, you will receive a total of 13 steel twist drill bits, each with a different size. The sizes range from 1.5mm to 6.5mm, providing you with a variety of options to suit your drilling needs. This comprehensive set ensures that you have the right drill bit for every project.

Invest in the High Speed Steel Twist Drill Straight Shank Cobalt Twist Drill Hand Drill Hole Drill Set for efficient, precise, and reliable drilling. With its self-centering points, heat resistance, and compatibility with various drilling equipment, this set is a must-have for DIY enthusiasts and professionals alike.

Introducing the Cobalt Steel Twist Drill Bit Set, a must-have for any DIY enthusiast or professional metalworker. These drill bits are manufactured from high-quality M35 cobalt steel, which is known for its exceptional hardness, heat resistance, and durability. With the addition of molybdenum and cobalt, these bits are transformed into a hardened heat-resistant alloy, boasting a remarkable Rockwell hardness of up to 67. This means that they can cut through tough materials with ease, providing a faster and more efficient drilling experience.

One of the standout features of these drill bits is the 135° quick-cut split point. This self-centering design allows the bits to penetrate quickly and accurately, without any wandering or walking. You can say goodbye to frustrating starts and imprecise holes. The straight shank ensures a secure fit in standard drill chucks and regular round collet chucks, guaranteeing precise centering for every drilling application. Please note that the 4 small bits included in this set have a 118-degree chisel point.

With a 15-piece set, you'll have a wide range of sizes at your disposal for various drilling tasks. The set includes 12 different fractional inch sizes: 2 pieces each of 1/16", 3/32", and 1/8" bits, and 1 piece each of 5/64", 7/64", 9/64", 5/32", 3/16", 7/32", 1/4", 5/16", and 3/8" bits. These bits are carefully packed in a hard ABS plastic indexed case, ensuring easy storage and organization. Rest assured that these drill bits are manufactured to the German DIN338 standard, guaranteeing consistent quality and performance.

While these drill bits excel in cutting through hard metals like stainless steel and cast iron (with a hardness level below HRC38°), they are also suitable for softer materials such as copper and aluminum. However, please note that they are not recommended for use on hardened steel or high carbon steel. In case you encounter any difficulties penetrating a material, we recommend adjusting the RPM (revolutions per minute) to achieve optimal results.

To assist you further, we have provided a downloadable user guide that includes valuable tips and tricks for drilling metals. This guide also features an RPM chart for several common metals, which is based on our own reviews as well as information from reputable sources. By following these recommendations, you can maximize the performance and longevity of your drill bits, ensuring a successful drilling experience.

Upgrade your drilling game with the Cobalt Steel Twist Drill Bit Set and enjoy the benefits of superior quality, exceptional durability, and precise drilling. Order your set today and experience the difference for yourself. Welcome to download our user guide and unlock the full potential of these remarkable drill bits.

Introducing TICONN Drill Bits, a set of premium quality drill bits made from titanium coated high speed steel. These drill bits are designed to stay sharper, last longer and drill at higher speeds compared to uncoated or oxide-coated drill bits. The double U-shaped flutes design clears chips effectively, making it easier to use.

The 135° point angle drill bits are self-centering and do not require a pilot hole, making them perfect for most applications of corded or cordless hand drills and drill presses. They are ideal for drilling mild steel, aluminum, copper, soft alloy steel, wood and plastic.

The TICONN Drill Bit set includes 30 different sizes ranging from 1/16 to 1/2 inch, with one piece for each size and an adapter. The sizes are molded on the case lid for easy identification and organization. The set also includes an extra center punch to help mark and drill more precisely.

TICONN is committed to providing high-quality products and stands behind the quality of their drill bits. If for any reason you are not satisfied with your purchase, they offer a 30-day money-back guarantee and a 12-month warranty. This makes shopping for TICONN Drill Bits risk-free.

Introducing the Silver and Deming Drill-Bit Set, a professional-grade tool designed for both personal and industrial use. This versatile 8-piece drill-bit set is engineered to effortlessly penetrate various surfaces such as plastic, copper, stainless steel, and more.

Crafted with a heavy-duty construction, these drill bits are made from premium high-speed steel. The unique black-and-gold dual finish not only enhances their appearance but also holds lubricant, ensuring smoother drilling while offering exceptional resistance against corrosion.

Precision is the hallmark of this drill-bit set. Each drill bit features a 135-degree split-point design, which significantly increases cutting speed and guarantees efficient drilling. The self-centering feature of these bits prevents any walking or wobbling during use, ensuring a precise and accurate drilling experience.

One of the standout features of this set is the 1/2-inch reduced shank with a Tri-flatted end appearance. This design allows the drill bits to securely fit into your power tools, eliminating any chance of slippage and providing you with better control and stability.

Included in this comprehensive set are drill bits in the following sizes: 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16", and 1". With this wide range of sizes, you'll have the perfect drill bit for any job that comes your way. Additionally, the set comes with a sturdy and convenient drill-bit organizer storage case, ensuring that your drill bits are always organized and easily accessible.

Whether you're a professional tradesperson or a DIY enthusiast, the Silver and Deming Drill-Bit Set is a must-have addition to your tool collection. Its exceptional durability, precision, and versatility make it the ideal choice for any drilling task. Invest in this top-quality set and experience the convenience and reliability that it brings to your projects.

The GMTOOLS Concrete Drill Bit Set is the perfect addition to any tool collection. Made of industrial grade materials, these drill bits are constructed of high-strength alloy steel that prevents bit cracking and provides a longer lifespan. The tungsten carbide tip can easily penetrate various materials and has a higher hardness than ordinary drill bits, ensuring a precise and efficient drilling process.

This set includes six different sized bits, including 1/8" (3 inch length – 2 included), 1/4" (4" length – 2 included), 1/4" (6" length – 2 included), 5/16 (6" length), 3/8" (6" length – 2 included), and 1/2" (6" length). All the bits come in a hard plastic container for easy and organized storage.

The U Type Slot design allows for fast and efficient dust removal, while the 3-flat shank design allows for easy insertion into the drill, ensuring a tight and secure grip. These bits are suitable for general drill, electric drill, hand drill, and bench drill, making them versatile and perfect for any DIY project.

These drill bits are ideal for drilling fastener holes in bathroom tiles, or wall mirrors, and can easily drill holes in tile, concrete, brick, glass, ceramic, and wood. It is important to cool the bits with water and control the drilling speed to ensure maximum efficiency.

At GMTOOLS, quality is a top priority, and they stand behind their product with a 30-day money-back guarantee. If for any reason you are not satisfied with your purchase, please contact them for a 100% satisfaction guarantee and risk-free shopping experience. Invest in the GMTOOLS Concrete Drill Bit Set for all your drilling needs.

Looking for a reliable and versatile drill bit set that can easily puncture through tough materials? Look no further than this Extra-Long Drill Bit Set.

With 12 inches of added length, these drill bits offer more stability during quick operations. Made from heat-treated M2 high-speed steel, these drill bits are highly durable and resistant to wear and tear. The sharp pointed tips ensure a smooth drilling finish, making it easy to puncture through tough materials such as metal, wood, plastic, PVC, and more.

This drill bit set includes five standard sizes of 12-inch drill bits, including 1/8-inch, 3/16-inch, 1/4-inch, 5/16-inch, and 3/8-inch. With these sizes, you will have the versatility to handle a wide range of drilling tasks.

Whether you're a professional contractor or a DIY enthusiast, this Extra-Long Drill Bit Set is the perfect choice for all your drilling needs. So why wait? Add this set to your toolkit today and experience the ease and convenience of long-reach drilling.

The Mulwark Cobalt Drill Bit Set includes 15 pieces of 3/16-inch drill bits. These drill bits have a straight shank design, making them easy to handle and providing stability during drilling tasks. The spiral grooves on the bits enhance chip removal efficiency, allowing for smoother and faster drilling. Additionally, the drill bits are fully grounded, ensuring improved durability and precision in various drilling applications.

Durability is a key feature of these metal drill bits. They are constructed with M35 high-speed steel and 5% cobalt, making them exceptionally hard and heat resistant. To further enhance their durability, they are coated with titanium nitride. This coating improves their hardness and reduces friction, resulting in efficient drilling performance.

The cobalt drill bits in this set have a jobber length design, with a cutting diameter of 3/16 inches and a flute length of 2-5/16 inches. The overall length of the bits is 3-1/2 inches, making them versatile for various drilling tasks. The 135-degree split point ensures precise and efficient drilling, making them an ideal choice for creating accurate and clean holes.

These drill bits are suitable for drilling through a variety of materials, including plastic, wood, carbon fiber, copper, aluminum alloy, stainless steel, and high-carbon steel. Their multi-purpose design allows for a wide range of applications, providing convenience and efficiency for various projects.

One of the standout features of this product is the lifetime warranty offered by MulWark. All MulWark tools, including this drill bit set, are warranted to be free of defects in materials and workmanship for as long as you own the product. If you encounter any issues, you can return the product free of charge with the original purchase receipt or choose to get a replacement.

Introducing a premium high-speed steel drill bit set that offers exceptional capability and durability for drilling holes in a wide range of materials. This set is designed with the utmost precision to ensure efficient and reliable performance every time.

Constructed from high-grade high-speed steel, these drill bits are built to last. They have been specifically engineered to drill holes in plastic, aluminum, copper, stainless steel, and many other types of materials. This versatility makes them a valuable addition to any toolbox or workshop.

One of the standout features of this drill bit set is its 135° split point design. This innovative design not only increases cutting speed but also incorporates a self-centering feature. This means that the drill bit will automatically find the center of the material, preventing any walking or wobbling. As a result, you can expect clean and precise holes without any guesswork.

The 1/2 inch reduced shank allows for easy compatibility with a variety of drill chucks, ensuring a secure and stable fit. This feature is particularly useful when working with larger drill bits, providing you with added control and stability during drilling.

In addition to its exceptional performance, this drill bit set boasts a unique black and gold dual finish. This finish not only adds a touch of elegance but also holds lubricant for smoother drilling. Furthermore, it provides maximum corrosion resistance, ensuring that your drill bits remain in optimal condition for years to come.

This set includes 8 of the most popular sizes, ranging from 9/16 to 1 inch. Whether you're working on a small DIY project or tackling a larger professional task, this comprehensive set has got you covered. To keep your drill bits organized and protected, they come in a heavy-duty aluminum organizing case. This case not only provides secure storage but also makes it easy to carry your drill bits wherever you go.

The Twist Drill Bit Set by [Brand] is designed to provide faster cutting and a longer lifespan for all your drilling needs. These high-quality drill bits are manufactured from M35 cobalt steel, a hardened alloy that includes molybdenum and cobalt. This unique composition gives the bits a Rockwell hardness of up to 67, making them exceptionally durable.

One of the standout features of these drill bits is their 135° Quick-Cut points. These points are self-centering, allowing for quick and precise penetration with minimal pressure. With these bits, you won't have to worry about them "walking" or "wandering" during use, ensuring accurate and reliable drilling every time.

In addition to their durability and precision, these twist drill bits are also extremely heat resistant. For maximum efficiency, they should be used and operated at 1500 RPM or greater. The straight shank design of the bits allows for a secure and firm hold, as well as accurate centering. They are compatible with standard drill chucks and regular round collet chucks, making them versatile and easy to use.

These drill bits excel at cutting through a variety of materials, including steel, stainless steel, hard metal, and iron. While they are particularly effective on hard metals like stainless steel and cast iron, they can also be used on softer materials. This makes them ideal for a wide range of projects and applications.

The Twist Drill Bit Set includes 13 pieces of M35 cobalt steel drill bits, ranging in size from 1.5mm to 6.5mm. Each drill bit is carefully packed in a plastic bag for easy storage and organization. Whether you're a professional contractor or a DIY enthusiast, this set is a must-have addition to your tool collection.

Invest in the Twist Drill Bit Set by [Brand] and experience faster cutting, exceptional durability, and precise drilling. With their high-quality construction and versatile performance, these drill bits are sure to become your go-to choice for all your drilling needs.