When it comes to drilling through steel, not all drill bits are created equal. The right drill bit can make all the difference in the world when it comes to getting the job done quickly and efficiently. But with so many options available, it can be tough to know where to start. Here are five key points to consider when looking for the best drill bits for drilling steel.
1. Material: Drill bits made from high-speed steel (HSS) are the most common and affordable option for drilling through steel. However, if you’re going to be drilling through hardened steel or other tough materials, you may need to invest in cobalt or carbide-tipped bits.
2. Coating: Look for drill bits with a hard coating, such as titanium or black oxide. These coatings help to reduce heat and friction, which can prolong the life of your bits and prevent them from dulling too quickly.
3. Size: Make sure you choose the right size drill bit for the job. Using a bit that is too small will take longer to drill the hole, while using a bit that is too large can damage your workpiece.
4. Point angle: The point angle of your drill bit can affect how well it cuts through steel. For drilling through softer steels, a 135-degree point angle is ideal. For harder steels, a 118-degree point angle may be more effective.
5. Brand and Price: While it’s tempting to go for the cheapest option, investing in a quality brand and spending a little more upfront can save you money in the long run. Look for reputable brands with good reviews and warranties.
By considering these key points, you’ll be well on your way to finding the best drill bits for drilling steel. Remember to choose the right material, coating, size, point angle, and brand for your specific needs, and you’ll be able to tackle any steel drilling project with ease.
10 Best Drill Bits For Drilling Steel
| # | Product Image | Product Name | Check Price |
|---|---|---|---|
|
1
|
 |
|
|
|
2
|
 |
|
|
|
3
|
 |
|
|
|
4
|
 |
|
|
|
5
|
 |
|
|
|
6
|
 |
|
|
|
7
|
 |
|
|
|
8
|
 |
|
|
|
9
|
 |
|
|
|
10
|
 |
|
1. 21pcs M35 Cobalt Drill Set For Hardened Metal & Stainless Steel With Indexed Storage Case
COMOWARE Cobalt Drill Bit Set is a high-quality set of 21 pieces designed to provide superior performance in drilling through hard materials. The set includes drill bits ranging in size from 1/16" to 3/8", each made from M35 high-speed steel with 5% cobalt for increased durability and heat resistance.
The precise 135° split point and twist design of these drill bits prevent walking and clear chips and particles faster, making them suitable for a wide variety of drilling applications. They are particularly successful in cutting through hard metals such as stainless steel, cast iron, high-temperature alloy, and titanium alloy. They are also effective for drilling through hard plastics and woods.
The set comes with an organized holder with a size index for easy storage and organizing. This makes it easy to keep the drill bits organized and readily accessible, helping to streamline the drilling process and improve efficiency.
These drill bits are ideal for both professional and DIY use, providing reliable performance and versatility in a wide range of applications. Whether you are working with hard metals, plastics, or woods, the COMOWARE Cobalt Drill Bit Set is designed to provide the precision and durability you need to get the job done right.
2. 13pcs Tungsten Steel Twist Drill Bits For Various Metals, 3-15mm.
The JIUWU 13pcs Tungsten Steel Cemented Carbide Twist Drill Bits are designed for drilling tough metals, including heavy-duty abrasive alloy metal drilling on hardened steel. Made from YG cemented carbide and chrome vanadium steel, these drill bits are highly durable and ideal for use in demanding applications.
One of the most common mistakes people make when using twist drills is running them at high speeds. This can cause the drill bit to overheat and lose its hardness, making it less effective as a cutting tool. To avoid this, it is important to use the correct speed and feed rate for the type of metal being drilled.
Twist drills are a type of cutting tool that are designed to drill through metal. They are made from high-speed steel or carbide, and are available in a variety of sizes and shapes. When used correctly, twist drills can provide fast and accurate drilling in a wide range of materials.
The JIUWU Tungsten Steel Cemented Carbide Twist Drill Bits are available in a range of sizes, from 3mm to 15mm. This makes them suitable for drilling holes of various sizes in metals such as stainless steel, copper, aluminum, and zinc alloy.
The carbide tips on these drill bits are highly durable and can easily cut through even the hardest steel. This allows for high-speed cutting without the risk of overheating or damaging the drill bit. To ensure optimal performance, it is recommended to use these drill bits at low RPMs with cooling fluid or lubricant.
In addition to their toughness and abrasion resistance, these drill bits also offer high-speed cutting for the high hardness. This makes them ideal for use in a variety of industrial applications, including metalworking, automotive repair, and construction.
Overall, the JIUWU 13pcs Tungsten Steel Cemented Carbide Twist Drill Bits are a reliable and high-quality option for drilling tough metals. With their durable construction and wide range of sizes, they are a versatile tool that can be used in a variety of applications.
3. Steel Dragon Tools® 24" Core Drill Bit Shaft Extension Rod For Core Drilling Rig
The Steel Dragon Tools® 24" Core Drill Bit Shaft Extension Rod is a heavy-duty, multi-purpose tool that is perfect for core drilling rigs. This extension rod is designed to fit most core drills and can be used with both wet and dry bits, making it a versatile tool for any job.
One of the key features of this extension rod is its 1-1/4 in. x 7 threading, which allows for easy attachment to most core drills. This threading is also designed to provide a secure and stable connection between the extension rod and the drill, ensuring that the bit stays in place during drilling.
Another important aspect of this extension rod is its hollow design, which is ideal for wet drilling. This design allows water to flow through the extension rod and onto the bit, keeping it cool and reducing the risk of overheating. This is especially important when drilling through tough materials like concrete or asphalt, which can generate a lot of heat.
The Steel Dragon Tools® 24" Core Drill Bit Shaft Extension Rod is also incredibly durable and built to last. It is made from high-quality materials that can withstand the wear and tear of heavy use, making it a reliable tool for any job site. Additionally, its length of 24 inches makes it easy to reach into tight spaces and drill at various depths.
Overall, the Steel Dragon Tools® 24" Core Drill Bit Shaft Extension Rod is an essential tool for any core drilling rig. Its versatility, durability, and ease of use make it a top choice for professionals in the construction, mining, and drilling industries. If you're looking for a reliable and effective tool for your next drilling project, this extension rod is definitely worth considering.
4. 115 Piece Heavy Duty Hss Drill Bit Set With Black And Gold Finish (1/16"-1/2", A-Z, 1-#60), Kfd Series
The Drill America 115 Piece Heavy Duty High Speed Steel Drill Bit Set with Black and Gold Finish (1/16"-1/2", A-Z, 1-#60), KFD Series is a must-have for any professional or DIY enthusiast looking for precision and durability in their drilling tools.
This drill bit set is manufactured from M2 premium grade high speed steel, which is known for its strength and ability to withstand high temperatures. This makes it suitable for use in a wide range of materials in the iron and steel families, such as aluminum, iron, stainless steel, and other hard metals.
The set features a 135-degree split point tip that ensures self-centering and reduces thrust, making it easier to drill through tough materials. The black and gold surface treatment also enhances its durability and makes it perfect for use in stainless steel and other hard metal drilling applications.
The 115 piece set comes in a sturdy metal case and includes sizes ranging from #1-60, A-Z, and 1/16-1/2 x 64ths. This wide range of sizes ensures that you have the right drill bit for any job, whether you're drilling through wood, metal, or other materials.
Overall, the Drill America 115 Piece Heavy Duty High Speed Steel Drill Bit Set with Black and Gold Finish (1/16"-1/2", A-Z, 1-#60), KFD Series is a versatile, durable, and reliable set of drill bits that is perfect for anyone who needs precision and quality in their drilling tools. Whether you're a professional or DIY enthusiast, this set is sure to meet all your drilling needs.
5. Nordwolf 5-Pc M35 Cobalt Stubby Drill Bit Set For Stainless Steel & Hard Metals With Multi Points Tip And 1/4" Hex Shank. Compatible With Quick Chucks & Impact Drivers. Includes Sae Sizes 3/32"-5/16".
The NordWolf 5-Piece M35 Cobalt Stubby Drill Bit Set is a high-quality tool designed for efficient drilling in stainless steel and various hardened metals. The set includes imperial sizes ranging from 3/32" to 5/16", making it suitable for a wide range of drilling applications.
Constructed of M35 cobalt steel, these precision ground drill bits offer extra durability and a long lifetime. The efficient design of the stubby drill bits measures from 1.84 to 2.32 inches, allowing access to hard-to-reach and tight spaces. This makes them ideal for use in confined spaces such as engine compartments, machinery, and other tight working areas.
The 135° split point two-blades special design drill tip (1/8-inch and larger) ensures perfect self-centering and fast drilling. This special design also prevents the bits from wandering or slipping during use, ensuring precise and accurate drilling every time. The multi-points drill tip design allows for faster and easier drilling, making these bits particularly useful for drilling through stainless steel and other tough materials.
The integrated hex shank is another notable feature of this set. All drill bits come with one-piece 1/4-inch hex shank compatible with standard and quick change chucks and drivers. This makes it easy to switch between bits and allows for quick and effortless bit changes, saving time and effort.
The NordWolf 5-Piece M35 Cobalt Stubby Drill Bit Set comes packed in a storage rail that is lasered with sizes for easy identification. This makes it easy to keep the set organized and to find the right size bit for the job at hand. The popular sizes included in the set make it a versatile and useful addition to any toolbox or workshop.
In conclusion, the NordWolf 5-Piece M35 Cobalt Stubby Drill Bit Set is a high-quality, efficient, and versatile tool that is ideal for drilling through tough materials such as stainless steel and hardened metals. With its durable construction, efficient design, and integrated hex shank, this set is a must-have for anyone who needs to drill through tough materials on a regular basis.
6. Steel Dragon Tools® 36" Core Drill Bit Shaft Extension Rod For Core Drilling Rig
The Steel Dragon Tools® 36" Core Drill Bit Shaft Extension Rod is a top-quality, multi-purpose shaft extension designed for use with core drilling rigs. It is a heavy-duty tool that is built to last and offers excellent performance in both wet and dry conditions.
One of the standout features of this extension rod is its versatility. It is designed to fit most core drills, making it an ideal choice for those who need a reliable extension rod for a range of different drilling tasks. This means that whether you are drilling through concrete, brick, or other tough materials, this extension rod will be up to the task.
The Steel Dragon Tools® 36" Core Drill Bit Shaft Extension Rod is also designed to be used with both wet and dry bits, giving you even more flexibility when it comes to drilling. Whether you prefer to use wet or dry bits, this extension rod will allow you to get the job done quickly and efficiently.
Another key feature of this extension rod is its 1-1/4 in. x 7 threading. This threading is designed to fit most core drill bits, making it easy to attach and detach bits as needed. This ensures that you can quickly switch between different bits depending on the task at hand, without having to worry about compatibility issues.
Finally, it is worth noting that the Steel Dragon Tools® 36" Core Drill Bit Shaft Extension Rod is hollow throughout for wet drilling. This means that it is designed to work seamlessly with wet drilling techniques, allowing you to drill through even the toughest materials with ease.
Overall, if you are in need of a high-quality, versatile extension rod for your core drilling rig, then the Steel Dragon Tools® 36" Core Drill Bit Shaft Extension Rod is an excellent choice. It is built to last, offers excellent performance in both wet and dry conditions, and is designed to fit most core drills.
7. Yougfin Step Drill Bit Set With Center Punch, Titanium Coated M35 High Speed Steel, 50 Sizes In Aluminum Case, For Diy – 5+1pcs.
The Yougfin Step Drill Bits with Automotive Center Punch are a high-quality set of drill bits designed for efficient hole drilling. Made from high-speed steel (HSS), which incorporates an element of titanium, these drill bits are harder than typical HSS bits, making them suitable for sheet metal working and ideal for cutting non-ferrous metals, plastic, wood board, and more.
One of the standout features of this set is the included automatic center punch. When drilling into metal or hard surfaces, the drill bit can often "walk" and become difficult to control. The automatic center punch solves this problem by punching a slight indentation in the surface where you want to drill. This indentation provides a starting point for the drill bit, preventing it from wandering off course.
The step drill bits in this set have a small point angle of 118°, which requires less pressure when centering in the material. The point starts drilling at contact, reducing friction, pressure, and heat. This design is particularly useful for drilling through tough materials, as it reduces the likelihood of the bit slipping or becoming stuck.
The double flutes and tri-flatted shanks on these step drill bits also enhance their performance and durability. The dual flute straight design ensures reliable performance, while the three flats on the shanks help prevent the bits from slipping in the drill chuck during drilling.
The Yougfin Step Drill Bits come in an assortment of sizes, indicated by the number of steps and diameters. The set includes 5 drill bits with a combined 50-step sizes added：6-step drill（3/16" to 1/2"），9-step drill（1/4" to 3/4"），10-step drill（1/4" to 1-3/8"），12-step drill（3/16" to 7/8"），13-step drill（1/8" to 1/2"）. These sizes make the set ideal for a range of DIY projects, making it a valuable addition to any toolbox.
Overall, the Yougfin Step Drill Bits with Automotive Center Punch are a high-quality and versatile set of drill bits that offer exceptional performance and durability. Whether you're a DIY enthusiast or a professional tradesperson, this set is sure to meet your needs and exceed your expectations.
8. Neiko 5-Piece Stubby Drill Bit Set For Metal With 1/4" Quick Change Hex Shank, M2 High Speed Steel, Drill Bit Holder Included.
The NEIKO 11402A Stubby Drill Bit Set is a must-have for any metalworking project. This 5-piece set features 1/4" quick change hex shanks, making it compatible with both standard and quick change chucks and drivers. Each bit is constructed of premium molybdenum M2 HSS, ensuring durability and resistance against wear.
The set includes 5 different bit sizes: 3/32, 1/8, 3/16, 1/4, and 5/16-inch drill bits. These bits are designed with a 135-degree standard tip to deliver powerful penetration against metals, plastics, and other hard surfaces. This tip design provides accuracy and precision in drilling, making it easier to achieve the desired results.
One of the key features of this set is the stubby design of each bit, measuring from 1.9 inches to 2.32 inches in length. This feature allows users to work in hard-to-reach and tight spaces, making it easier to drill in difficult areas. Whether using a short or right-angle drill, the stubby design of these bits ensures that users can achieve the desired results with ease.
The NEIKO 11402A Stubby Drill Bit Set also comes with a hex shank holder, making it easier to store and organize the bits. This holder keeps the bits secure and prevents them from getting lost or damaged. The holder also makes it easy to access the bits when needed, ensuring that users can quickly and easily switch between different sizes as needed.
Overall, the NEIKO 11402A Stubby Drill Bit Set is a high-quality and versatile set that provides users with the ability to tackle a wide range of metalworking projects. With its premium build, tip design, hex fit, stubby design, and bit holder, this set is a must-have for anyone looking to achieve precision and accuracy in their drilling.
9. Jerax Step Drill Bit Set For Multiple Materials, 1/4"-1-3/8" Range, Double Fluted, High Speed Steel For Precision Hole Drilling.
The Jerax Tools 1/4 to 1-3/8 Inch Step Drill Bit is an essential tool for anyone working in metal fabrication, woodworking or DIY projects. Made from M2 High-Speed Steel (HSS), this drill bit is designed to cut clean holes in a variety of materials, including stainless steel, copper, aluminum, wood, and plastic.
The M2 HSS material used in this drill bit provides 50% more tungsten and 150% more molybdenum, which significantly improves its durability. This makes it perfect for heavy-duty projects that require clean and precise holes without the need to stop and check the target hole size.
One of the key features of this drill bit is its polished steps and size highlights, which allow you to see the target hole size during drilling. This eliminates the need to stop in the middle of drilling and check the size, saving you time and effort.
With high-accuracy CNC processing and several optimized design details, this drill bit cuts easy, fast, and clean, outperforming the average ones on the market. The vacuum heat treatment and nitride surface hardening treatment make the performance even better.
This step drill bit can cut holes in stainless steel, hardened metal, mild steel, galvanized steel, aluminum, copper, plastic, wood, or anything that has similar or lower hardness as these materials. It can cut up to 12ga /2.7mm thickness for stainless steel.
Most importantly, this drill bit comes with 6 marked sizes, eliminating the need to buy a kit. The marked sizes include 1/4", 7/8", 1-1/8", 1-7/32", 1-1/4", and 1-3/8", allowing you to drill 6 different hole sizes, saving you time and effort to change bits.
In conclusion, the Jerax Tools 1/4 to 1-3/8 Inch Step Drill Bit is a heavy-duty and versatile tool that can be used for various projects. Its durable M2 HSS material, polished steps and size highlights, and multi-hole sizes make it an excellent investment for both professionals and DIY enthusiasts.
10. 12 Drill Bits Hss Pin Vise Jewelry Watch Repair Tool
The 12 Drill Bits HSS Pin Vise Jewelry Watch Repair Tool is an essential accessory for those who need to drill holes in ferrous metals, tough casting sand forgings, and hardened stainless steel. Made of rust-free aluminum, this tool is long-lasting and durable, except for the chuck.
The handle of the 12 Drill Bits HSS Pin Vise is designed to prevent rolling and ensure a perfect grip. The well-knurled handle is comfortable to hold, making it easy to use for long periods of time. Additionally, the handle comes with a pocket clip, which makes it easy to carry around.
One of the standout features of this tool is that the drill bits can be stored in the handle, which makes it easy to keep them organized and readily available. The handle measures approximately 3 13/16 x 7/16 inches, making it compact and easy to store.
This versatile tool can be used for various applications, from jewelry making to watch repair. Its high-speed steel (HSS) drill bits are designed to drill through tough materials, making it an ideal tool for those who demand precision and accuracy.
The 12 Drill Bits HSS Pin Vise Jewelry Watch Repair Tool is perfect for both professionals and DIY enthusiasts. Its compact size, durable design, and versatile capabilities make it an essential tool for anyone who needs to drill through tough materials. With its pocket clip and easy storage capabilities, this tool is easy to carry around and use whenever you need it.
Best Drill Bits For Drilling Steel FAQs
How do you choose the right size and shape of drill bit for drilling through steel?
When choosing the right size and shape of drill bit for drilling through steel, it is essential to consider the thickness of the steel, the type of steel, and the type of hole required. For thinner steel sheets, a smaller diameter drill bit can be used, while thicker steel requires larger bits. The shape of the drill bit also matters; a twist drill is the most common type of drill bit used for drilling through steel, while step drills are ideal for creating holes of different sizes. It is crucial to select a drill bit made of high-speed steel or cobalt as they are durable and can withstand the heat generated during the drilling process. Additionally, the drill bit's point angle should be between 118 and 135 degrees, depending on the steel's hardness. Finally, always ensure that the drill bit is sharp before beginning to drill through steel.
How do you prevent drill bits from overheating or breaking when drilling through steel?
To prevent drill bits from overheating or breaking when drilling through steel, it is essential to use the right type of drill bit and apply the correct drilling technique. Firstly, using high-speed steel (HSS) drill bits or cobalt drill bits that are specifically designed to drill through metal is recommended. Secondly, applying cutting fluid or lubricant while drilling will help to reduce heat buildup and minimize wear on the drill bit. Thirdly, drilling at a slower speed and applying consistent pressure will prevent the drill bit from overheating and breaking. Pre-drilling a smaller pilot hole before drilling the final hole can also help in reducing the load on the drill bit. Finally, ensuring that the drill bit is sharp and properly maintained will help to prolong its lifespan and prevent overheating or breaking.
What are some of the best brands of drill bits for drilling through steel, and what makes them stand out from the competition?
When it comes to drilling through steel, some of the best brands of drill bits are DeWalt, Irwin, and Bosch. These brands stand out from the competition due to their high-quality materials, precision engineering, and superior performance. DeWalt's drill bits are made of industrial-grade cobalt for maximum durability and strength, while Irwin's cobalt M-35 steel construction provides outstanding wear resistance. Bosch's black oxide coating increases the lifespan of the bits and reduces friction, making them ideal for tough drilling jobs.
Additionally, these brands offer a wide range of sizes and styles to fit any drilling need, from small holes to larger diameters. They also have specialized bits for drilling through hardened steel, which require even greater strength and durability. Overall, the combination of high-quality materials, precision engineering, and specialized designs make these brands some of the best options for drilling through steel.
What are the best materials for drill bits when drilling through steel?
The best materials for drill bits when drilling through steel are high-speed steel (HSS), cobalt, and carbide. HSS is the most commonly used material for drilling through steel and is suitable for most applications. Cobalt drill bits have a higher resistance to heat and wear than HSS and are best for drilling through harder steels. Carbide drill bits are the most expensive but are also the most durable and can handle the toughest jobs, including drilling through stainless steel.
When choosing a drill bit for steel, it is important to consider the size and thickness of the steel, as well as the type of drilling operation being performed. For example, a larger diameter bit may require a more durable material, while a thinner steel sheet can be drilled with a standard HSS bit. Additionally, lubrication and cooling during the drilling process can increase the lifespan of the drill bit and improve performance.
What is the best coating for drill bits when drilling through steel?
The best coating for drill bits when drilling through steel is a titanium nitride (TiN) coating. TiN is a hard, wear-resistant coating that can withstand high temperatures and friction, making it ideal for drilling through tough materials like steel. The coating also reduces friction and prevents heat buildup, which can cause the drill bit to wear out or break prematurely. TiN-coated drill bits also have a longer lifespan and require less frequent sharpening or replacement. Other coatings that can be effective for drilling through steel include cobalt, black oxide, and diamond-like carbon (DLC), but TiN is considered the most versatile and cost-effective option for most applications. Ultimately, the choice of coating will depend on the specific drilling conditions, such as the type of steel, the drilling speed and feed rate, and the desired level of accuracy and surface finish.