Best Metal Cutting Drill Bits (2024 Updated)

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If you are in the market for the "best metal cutting drill bits," there are a few key points you should keep in mind. These points will help you find the right drill bits for your specific needs and ensure that you get the most bang for your buck.

First, consider the material you will be drilling. Different drill bits are designed to work with different types of metal, so it's important to choose a bit that is compatible with the material you will be working with. Some common materials include steel, aluminum, and copper.

Second, consider the size of the drill bit. The size of the drill bit will determine the size of the hole you can drill, so it's important to choose a bit that is the right size for your needs. Be sure to measure the diameter of the hole you need to drill before selecting a drill bit.

Third, consider the type of drill bit. There are several different types of drill bits available, including twist bits, step bits, and hole saws. Each type has its own advantages and disadvantages, so it's important to choose the type that is best suited for your needs.

Fourth, consider the quality of the drill bit. High-quality drill bits are less likely to break or wear out quickly, which can save you money in the long run. Look for drill bits that are made from high-quality materials and have a durable construction.

Finally, consider the price of the drill bit. While it's important to choose a high-quality drill bit, you don't want to overspend. Look for drill bits that are priced competitively and offer good value for your money.

By keeping these key points in mind, you can find the best metal cutting drill bits for your specific needs and budget.

10 Best Metal Cutting Drill Bits

1. Metric M42 8% Cobalt Twist Drill Bits Set For Stainless Steel And Hard Metal (1mm-10mm/19pcs)

The Metric M42 8% Cobalt Twist Drill Bits Set is a high-quality product designed for cutting through stainless steel, hard metals, aluminum, and plastic. The set includes 19 pieces of drill bits ranging from 1mm to 10mm in diameter, with a length of up to 13cm, and 135-degree split point design.

The drill bits are made of premium M42 8% cobalt steel, which has a rockwell hardness scale of 68-70 HRC. This steel composition gives the drill bits excellent heat, wear, and chip resistance, resulting in a longer tool life. The cobalt drill bit is typically capable of running three to five times faster than other drill bits, making it a highly efficient tool for drilling holes in various materials.

One of the significant advantages of the Metric M42 8% Cobalt Twist Drill Bits Set is its 3-step design, which allows it to cut through hard metals with ease. The sufficiently sharp bit edge can cut the metal material into long strips of iron chips instead of slowly grinding through the material with a blunt drill bit. This design makes the drilling process faster and more efficient, resulting in a higher accuracy rate.

Despite the higher price of cobalt drill bits, the cost per hole when using them will be the lowest, as they can produce many more holes compared to other drill bits. This makes them an economical choice for professionals and DIY enthusiasts alike.

The set's 19 pieces of drill bits come in diameters ranging from 1mm to 10mm, in increments of 0.5mm. The lengths of the drill bits vary, with the smallest having a length of 3.4cm and the longest a length of 13cm. The 135-degree split point design of the drill bits ensures that they start drilling quickly without the need for center punching.

In conclusion, the Metric M42 8% Cobalt Twist Drill Bits Set is a premium product designed for drilling through hard metals, stainless steel, aluminum, and plastic. The set's 19 pieces of drill bits, made of premium M42 8% cobalt steel, ensure a longer tool life, efficient drilling process, and high accuracy rate. The 3-step design of the drill bits and 135-degree split point design ensure fast and easy drilling, making them an ideal choice for professionals and DIY enthusiasts.

2. 10pc Tungsten Carbide Burr Set With 1/4" Shank For Die Grinders – Premium Quality Double Cut Rotary Files For Metal Grinding And Cutting. Includes Gifts: 4pc M2 Screw Extractor Set. Compatible With Milwaukee And Dewalt Accessories.

Booly's Carbide Burrs are a premium-grade tungsten carbide burr set that boasts unbeatable performance and overpowering durability. Unlike other burr sets that use hollow heads soldered in recycled copper burr bits, Booly's fully cemented CNC die grinder bits are crafted from raw carbide heads for superior results.

Crafted from YG10X raw carbide heads and reinforced via a US silver solder brazing, these burr bits are designed for effortless multi-function of rapid stock removal with balanced geometry that maintains surface quality. They are perfect for artists and beginners alike, delivering rich processing for a vast material type whenever you want.

Booly's Carbide Burrs are ideal for those looking to tackle new projects in cast iron, concrete, wood or hardened steel. They can be used to produce an undercut or overhung edges, and are perfect for tasks such as forming, deburring, straightening, slag removal of casting, milling, or almost any material.

These cutting bits are the ideal option for when you need to hollow out a concave ball surface, produce a radius degree or make leveling adjustments easily. Designed to work efficiently where conventional carbide rotary burrs fail, Booly is the original and reliable source for the industry's best performing burr bits for metal.

This industrial-grade set is a must-have for anyone who needs to shape metal. It provides a unique combination of superior operation with or against the grains and resistance to loading for outstanding integrity. The set comes with a durable storage case that includes a 10-pc Burr Types SA/SC/SD/SE/SF/SH/SL, as well as a 4-pc gift of premium stripped screw remover bits HSS-M2, size range 1/8-1/2 inch.

Suitable with popular drills with 6.35mm 1/4 Inch collet chuck as Makita, DeWalt, Milwaukee, and die grinder, these burr bits are recommended for operating speed range 10,000-45,000 RPM. They will remove material at lower speeds, but both material removal rate and control improve as speed increases.

Booly's Carbide Burrs are a high-quality and affordable set that is perfect for any workshop. With their superior performance and durability, they are sure to become your go-to burr set for all of your metal shaping needs. Plus, with a full warranty, you can buy with confidence knowing that you are getting a quality product.

3. 21-Piece Titanium Twist Drill Bit Set For Cutting Hard Metals Like Stainless Steel, Aluminum, And Titanium.

The YIYITOOLS Titanium Twist Drill Bit Set is a versatile and reliable option for those looking to cut hard metals such as stainless steel, aluminum alloy, and titanium alloy. This set includes 21 pieces in varying sizes, ranging from 1/16 to 3/8 inches, offering a wide range of applications for handymen and craftsmen alike.

One of the standout features of this drill bit set is its firm and secure hold. The bits maintain a secure connection to the impact driver, reducing drops and wobbling and allowing for more precision and control. This makes them a great choice for seasoned professionals and newcomers alike.

The YIYITOOLS Titanium Twist Drill Bit Set is also built to last. Made from durable and sturdy stainless steel, these bits can handle daily use even in the long run. They are corrosion-resistant and easy to maintain, making them a breeze to organize and keep in good condition. Additionally, the titanium coating can extend the life of the bits by up to five times, providing even more value to the user.

One of the biggest advantages of this drill bit set is its precision grinding inclined blade. This feature ensures fast drilling, impressive cutting power, and excellent chip removal, making it easier to work with hard metals and achieve the desired results.

Overall, the YIYITOOLS Titanium Twist Drill Bit Set is a high-quality option for those in need of a versatile and dependable set of drill bits. With its firm and secure hold, durable build, and precision grinding inclined blade, this set is sure to meet the needs of any handyman or craftsman.

4. 5pcs Hss Titanium Step Drill Bit Set With Aluminum Case For Metal, 50 Sizes.

The IRONANT Step Drill Bits set is a must-have for any DIY enthusiast or professional metalworker. These drill bits are made from high-speed steel (HSS) and coated with titanium for increased durability and sharpness. The HSS material and titanium coating ensure that these step drill bits can withstand high temperatures and resist wear and tear during drilling.

The 118° Split Point Tip and dual-flute design of the IRONANT Step Drill Bits increase cutting speed and prevent walking. The self-centering feature ensures accurate drilling and prevents the bit from slipping off the surface. The dual-flute design clears chips faster and allows particles to escape easily, reducing the risk of clogging and overheating.

The IRONANT Step Drill Bits set includes 5 standard pieces, each with a range of 10 sizes, totaling 50 sizes in all. This versatility makes it easy to find the right size for any project, eliminating the need to switch between multiple drill bits. The sizes range from 1/4 inch to 1-3/8 inches, making the IRONANT Step Drill Bits suitable for drilling in plastic, aluminum, and iron.

The IRONANT Step Drill Bits set comes with a well-organized aluminum case, making it easy to store and transport. The case ensures that the drill bits are protected from damage and are easy to access when needed. The compact size of the case also makes it easy to store in a toolbox or on a shelf.

While the IRONANT Step Drill Bits set is versatile and suitable for drilling in various materials, it is not recommended for use on stainless steel. The high-speed steel and titanium coating may not be able to withstand the high temperatures generated when drilling through stainless steel.

In conclusion, the IRONANT Step Drill Bits set is a reliable and durable tool for any metalworking project. The HSS material and titanium coating ensure that the drill bits can withstand high temperatures and resist wear and tear during drilling. The 118° Split Point Tip and dual-flute design increase cutting speed and prevent walking, while the well-organized case makes storage and transportation easy.

5. Cs Unitec Tct Annular Cutter For Metal Cutting With 2.5" Diameter, 2.375" Depth, And 3/4" Weldon Shank. Ideal For Use With Magnetic Drills/drill Press On Steel, Stainless, And Other Materials.

The CS Unitec 9-1-280 C TCT Annular Cutter is a high-quality cutting tool designed to provide faster and more efficient drilling compared to standard drill bits. This carbide-tipped annular cutter is capable of cutting up to 10 times faster than traditional drill bits and up to 3 times faster than high-speed steel cutters.

This cutting tool is ideal for drilling through hard materials, including hardened steel, stainless steel, INOX, hardox, rail, and even metal with rust, paint/coatings, and corrosion. With a burr-free finish, the CS Unitec 9-1-280 C TCT Annular Cutter is perfect for speed-drilling and bolt-drilling, making it ideal for a wide range of applications.

The Weldon Shank Standard (2 Flat) makes this cutter compatible with most magnetic base drills and drill presses. TCT slugger bits up to 3" diameter fit 3/4" weldon chucks, which is the industry standard. Bits with a diameter of 3-1/16" and above fit standard 1-1/4" weldon chucks. This compatibility ensures that the cutting tool can be used with a wide range of drilling machines, making it a versatile choice for professionals.

The CS Unitec 9-1-280 C TCT Annular Cutter has a diameter of 2-1/2" and a depth of cut of 2-3/8". The pilot pin is included for up to 4" depth, but it is not included on mag drill bits with a depth of 6" and over. The TCT Hornet Cutters are also available in up to 6" diameter and 10" depth, providing a comprehensive range of cutting tools for professionals.

In conclusion, the CS Unitec 9-1-280 C TCT Annular Cutter is a high-quality cutting tool that offers faster and more efficient drilling compared to standard drill bits. With its compatibility with most magnetic base drills and drill presses, it is a versatile choice for professionals. Its ability to drill through hard materials, including hardened steel and stainless steel, makes it an essential tool for a wide range of applications.

6. 13pcs M35 Cobalt Drill Bit Set (1/16-1/4 Inch) For Stainless Steel, Hard Metal, Cast Iron, Plastic, And Wood.

The STROTON Cobalt Drill Bit Set is an excellent choice for individuals who require a durable and reliable tool for heavy-duty drilling tasks. This drill bit set is made using premium true 5% cobalt steel with 68 HRC, which provides 3X heat, wear, and chip resistance as well as 3X tool life. The cobalt ore used in this set is sourced from the manufacturer's own mine, ensuring that the cobalt content is genuine and not falsely marked.

The drill bits are designed with a split point and fully ground process, making them ideal for cutting through stainless steel, steel plate, iron sheet, cast iron, and hardwood. They are also suitable for drilling out bolts, studs, and screws. The split point design helps to prevent walking and allows for faster penetration, while the fully ground process ensures a smoother and more precise drilling experience.

In addition to their durability and performance, the STROTON Cobalt Drill Bit Set is also very efficient. These cobalt high-speed steel drill bits are typically capable of running 3 times faster than ordinary drill bits, resulting in a lower cost per hole. This means that despite their higher price, they provide an excellent value for money as they produce many more holes than ordinary drill bits.

The drill bits are also incredibly sharp, making them capable of cutting through even hardened metal into long iron bars. A dull drill bit can slowly wear through metal, but the STROTON Cobalt Drill Bit Set can quickly and efficiently work through a variety of materials.

The set includes 13 pieces of jobber length industrial drill bits, ranging from 1/16 to 1/4 inches in diameter in 1/64 inch increments. This variety allows users to choose the perfect size for their specific task, ensuring precise and efficient drilling.

Overall, the STROTON Cobalt Drill Bit Set is an excellent investment for individuals who require a reliable, durable, and efficient tool for heavy-duty drilling.

7. 29pcs Cobalt Drill Bits Set For Hard Metal And Hardened Steel, Three Flute 1/16-1/2in Twist Bit Set For Power Drills, Home Tools.

The Anfrere 29pcs Cobalt Drill Bits Set is a powerful and versatile tool designed to make drilling hard metals an effortless task. Made from industrial grade M35 high-speed steel with 5% cobalt, the drill bits provide superior hardness and wear resistance, making them ideal for drilling through tough materials like stainless steel, cast iron, high temperature alloy, and titanium alloy.

With a lifespan four times that of regular HSS drill bits, users can enjoy a much faster cutting speed and longer lifespan. This makes the Anfrere 29pcs Cobalt Drill Bits Set an excellent investment for professionals and DIY enthusiasts alike.

The drill bits have a split point design that increases the cutting edge on the tip, and the blunter 135° angle means more of the cutting edge touches the surface sooner, resulting in smoother drilling. The grooves on the sides of the bits’ twisted shanks will bring metal shavings up and out of the hole as you drill, ensuring efficient performance.

The Anfrere 29pcs Cobalt Drill Bits Set is perfect for use with stationary drills to achieve better finishes on chamfers, but they can also be used with hand drills for countersinking in any hard or soft metal and any type of wood. This flexibility makes the set an excellent addition to any toolbox.

The set comes with a metal index case that features a size chart for easy bit access and identification, making it easy for users to find the right size of drill bit for their needs. The set includes drill bit sizes from 1/16 to 1/2 inch increments, providing a wide range of options to choose from.

In conclusion, the Anfrere 29pcs Cobalt Drill Bits Set is a must-have for anyone who needs to drill through hard metals, wood, or other soft materials. With its industrial grade M35 high-speed steel and 5% cobalt construction, superior hardness and wear resistance, efficient performance, and multiple applications, this set is an excellent investment for anyone looking to achieve professional results.

8. Amoolo 13-Piece M35 Hss Cobalt Drill Bit Set For Steel, Stainless Steel, Hard Metal, Cast Iron, Plastic, And Wood (1/16"-1/4").

The Amoolo Cobalt Drill Bit Set is a high-quality collection of industrial-grade drill bits designed for efficient and precise drilling of various materials. Made of M35 Cobalt High Speed Steel, these drill bits are much harder and wear-resistant than regular HSS drill bits. The set contains 13 commonly-used sizes of jobber length drill bits ranging from 1/16" to 1/4" and comes with a portable plastic case for easy storage and organization.

The drill bits feature a fully ground spiral groove design that quickly clears particles, reduces friction and heat, and enables faster and cooler drilling performance. Additionally, the 135° Split Point with round straight shank prevents walking and ensures precise and fast drilling without needing a center punch.

The Amoolo Cobalt Drill Bit Set is perfect for cutting through hard metals such as stainless steel, steel, sheet metal, and cast iron, as well as softer materials like plastic, aluminum alloy, and wood. However, users must pay attention to speed, pressure, and heat control during drilling to avoid damaging the bits.

At Amoolo, customer satisfaction is a top priority, and the company's 90-day Hassle-Free Warranty Policy guarantees a refund or exchange for any product defects. Overall, the Amoolo Cobalt Drill Bit Set is a reliable and durable collection of drill bits that offers efficient and precise drilling performance on various materials, making it an essential tool for professionals and DIY enthusiasts alike.

9. Hss Titanium Step Drill Bit Set With 50 Sizes And Automatic Center Punch For Diy Hobbyists.

The Hss Titanium Step Drill Bit 5pcs, Hss Cobalt Multiple Hole 50 Sizes, Titanium Step Drill Bit Set with Automatic Center Punch is a high-speed metal steel drill that features double cutting blades, making it perfect for DIY hobbyists. This product comes with an automatic center punch that delivers an automatic, high-impact, spring-loaded strike through adjusting the cap. Additionally, the carbide center punches are ten times stronger than regular punches, while the protective aluminum case ensures that the drills are not easy to dull.

The Hss Titanium Step Drill Bit Set includes five standard step drill bits with center punch, and different sized shanks ensure compatibility with 1/4, 3/8, and 1/2 in. chuck sizes, making it suitable for a wide range of applications. The Hss 50 Sizes feature makes the set even more versatile, allowing users to drill holes of various sizes.

The durable titanium coated drill is coated with titanium, which makes it perform well in heat, corrosion, and rust resistance. This feature also reduces friction and runs cooler, ensuring that the drill bits last longer than conventional bits.

The Hss Titanium Step Drill Bit Set is universally compatible, providing fast and smooth drilling on steel, aluminum, wood, plastic plates, and other materials. However, it is important to note that the plate must be thinner than the height of the step drill. This feature makes the Hss Titanium Step Drill Bit Set an excellent option for people who need to drill different-sized holes in various materials.

The meticulously manufactured drills come with very high visibility digital laser measurements, allowing users to easily find the size they need and improve drilling accuracy. This feature makes the Hss Titanium Step Drill Bit Set an excellent option for professionals who need precision in their work.

In summary, the Hss Titanium Step Drill Bit 5pcs, Hss Cobalt Multiple Hole 50 Sizes, Titanium Step Drill Bit Set with Automatic Center Punch is a high-speed metal steel drill that is perfect for DIY hobbyists. It features double cutting blades, an automatic center punch, and is universally compatible. Additionally, the Hss 50 Sizes, durable titanium coated drill, and clear measurements make the set even more versatile and accurate, making it an excellent option for professionals and DIY enthusiasts alike.

10. Eoocvt 6pcs 3-8mm Titanium Hss Drill & Saw Bit Set Cutting Carpenter Wood Metal

The eoocvt 6pcs 3-8mm Titanium HSS Drill & Saw Bit Set is a top-quality product that provides longer life and durability. This set is suitable for thin wood, metal, and plastic plates pull grooving, making it a versatile tool for various tasks.

The drill bits are made of HSS high-speed steel material with titanium coating, which ensures that the bits are sharp, fast, and require less effort to use. The titanium coating also increases the hardness and heat resistance of the bits, making them last longer than regular drill bits.

The set includes six different sizes of drill bits ranging from 3mm to 8mm, which allows for flexibility in the type of task you need to perform. The set also includes saw bits that can be used for cutting and shaping wood and metal.

The design of the drill bits ensures that they are easy to use and provide clean and precise cuts. The set is suitable for both professionals and DIY enthusiasts who need high-quality drill bits for their projects.

The eoocvt 6pcs 3-8mm Titanium HSS Drill & Saw Bit Set is an excellent investment for those who need a durable and versatile set of drill bits. The set is made of high-quality materials and is designed to provide efficient and precise cuts, making it a valuable addition to any toolbox.

Best Metal Cutting Drill Bits FAQs

How long do the best metal cutting drill bits last before needing replacement or sharpening?

The lifespan of metal cutting drill bits varies depending on several factors, such as the material being drilled, the drilling speed, the drilling technique, and the quality of the drill bit. Generally, high-quality metal cutting drill bits made of materials such as cobalt or carbide can last longer than regular steel drill bits. However, even the best metal cutting drill bits will eventually dull over time and require sharpening or replacement.

The frequency of sharpening or replacement also depends on the frequency of use and the level of wear and tear. For heavy-duty and frequent use, metal cutting drill bits may need to be sharpened or replaced every few weeks or months. However, for occasional use, metal cutting drill bits can last for several years before needing replacement or sharpening. To maximize the lifespan of metal cutting drill bits, it is essential to use the appropriate drilling technique, lubrication, and speed, and store them correctly in a dry and cool place.

What are the most durable and efficient metal cutting drill bits available in the market?

The most durable and efficient metal cutting drill bits available in the market are made of high-speed steel (HSS) or carbide. HSS drill bits are made from a blend of steel and other metals such as tungsten and cobalt, making them ideal for cutting through tough metals like stainless steel and titanium. Carbide drill bits, on the other hand, are made from a mixture of tungsten and carbon, making them even more durable than HSS drill bits. They are ideal for drilling through hardened metals like cast iron and ceramics.

To ensure maximum efficiency, it is important to choose the right drill bit for the job, taking into consideration the material being drilled and the required hole size. Coated drill bits, such as titanium or black oxide coatings, can also improve the durability and efficiency of metal cutting drill bits. Ultimately, the choice of drill bit will depend on the specific needs of the job at hand.

What features should I look for when selecting the best metal cutting drill bits for my project, such as coating, shape, or point angle?

When selecting the best metal cutting drill bits for your project, you should consider several features that affect performance and durability. These features include the coating, shape, and point angle of the drill bit.

Coating: Look for drill bits that have a coating to reduce friction and heat buildup, such as titanium or black oxide coatings. These coatings also help to prevent wear and increase the lifespan of the drill bit.

Shape: Different drill bit shapes are designed for different applications. For metal cutting, look for drill bits with a twist design, which helps to create clean holes and reduce vibrations.

Point angle: The point angle of the drill bit affects the cutting performance and the type of material it can cut. For general metal cutting, a point angle of 118 degrees is suitable. For harder metals, such as stainless steel, a point angle of 135 degrees is recommended.

Overall, it is important to choose a high-quality drill bit that is specifically designed for metal cutting and matches the requirements of your project.

What is the ideal drill bit size for cutting through thick metal sheets or pipes?

The ideal drill bit size for cutting through thick metal sheets or pipes varies depending on the thickness of the metal and the type of drill bit being used. Generally, a larger drill bit diameter is necessary for thicker metal sheets or pipes. For example, a 1/2-inch drill bit may be suitable for cutting through metal sheets up to 1/4 inch thick, while a 3/4-inch drill bit may be needed for thicker sheets or pipes.

In addition to drill bit size, the type of drill bit also plays a crucial role in cutting through thick metal. Cobalt drill bits are ideal for cutting through tough materials like stainless steel, while high-speed steel bits work well on softer metals like aluminum. Carbide-tipped bits are ideal for cutting through hardened metals like cast iron.

Overall, the ideal drill bit size for cutting through thick metal sheets or pipes will depend on the specific project requirements and the type of metal being worked with.

Which metal cutting drill bits can handle the toughest materials, such as stainless steel or hardened steel?

The toughest materials such as stainless steel or hardened steel require specialized metal cutting drill bits that can handle the high levels of heat and pressure generated during drilling. The most effective drill bits for these materials are made of tungsten carbide, cobalt, or high-speed steel with cobalt coatings.

Tungsten carbide drill bits are the most durable and heat-resistant and can handle the toughest materials without wearing down quickly. Cobalt drill bits are also highly durable and can withstand high temperatures, making them ideal for stainless steel and other hard metals.

Finally, high-speed steel with cobalt coatings offer excellent performance in drilling through hardened steel and other materials with high levels of hardness. They are highly effective in maintaining sharpness, even after extended use.

In conclusion, the best drill bits for cutting through tough materials such as stainless steel or hardened steel are tungsten carbide, cobalt, or high-speed steel with cobalt coatings. These drill bits are highly durable, heat-resistant, and can withstand the high levels of pressure and heat generated during drilling.

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