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Best Drill Bits For Stainless (2023 Update)

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If you’re looking for the perfect drill bits to use on stainless steel, you’ve come to the right place. The right drill bit can make all the difference in achieving the perfect drill in any material, but stainless steel requires a specific type of bit that can withstand its hardness, resistance to heat, and high tensile strength.

Before buying the best drill bits for stainless steel, it’s important to consider factors such as the type of stainless steel you’re working with, the size and depth of the hole you need to drill, the speed and feed rate of your drill, and the precision and accuracy you need for your project. It’s also important to choose a drill bit with the right geometry and coating to reduce friction, heat, and wear during drilling.

Are you tired of breaking your drill bits or drilling holes that are not precise and clean enough? Do you want to save time, money, and effort by using the most durable and efficient drill bits for stainless steel applications? Are you curious about the top brands and models of drill bits that professionals and DIY enthusiasts trust and recommend? Keep reading to discover the answers to these questions and more.

10 Best Drill Bits For Stainless

# Product Image Product Name Product Notes Check Price
1

The product is ideal for drilling into metal materials due to its cobalt M42 composition and 14-piece assorted set.

2

The product is ideal for drilling through hard metals like stainless steel and cast iron.

3

The product is ideal for drilling into metal, stainless steel, and cast iron with its M35 cobalt drill bit set.

4

This product is ideal for drilling holes in stainless steel, alloy metal, plastic, and wood with a 20mm diameter.

5

The product is ideal for drilling into hard metals like stainless steel and is made with high-quality cobalt steel.

6

Ideal for drilling hard metals and stainless steel with a jobber length design in a pack of 12.

7

The product is ideal for drilling through tough materials, including stainless steel, cast iron, and other alloys.

8

This drill bit set is ideal for drilling through hardened metal, stainless steel, wood, and cast iron.

9

Ideal for drilling hard materials such as cast iron, heat-treated steel, and stainless steel with a straight shank.

10

Ideal for drilling on mild steel, copper, aluminum, zinc alloy, and other metals with a 3/16" diameter.

The product is ideal for drilling into metal materials due to its cobalt M42 composition and 14-piece assorted set.

The product is ideal for drilling through hard metals like stainless steel and cast iron.

The product is ideal for drilling into metal, stainless steel, and cast iron with its M35 cobalt drill bit set.

This product is ideal for drilling holes in stainless steel, alloy metal, plastic, and wood with a 20mm diameter.

The product is ideal for drilling into hard metals like stainless steel and is made with high-quality cobalt steel.

Ideal for drilling hard metals and stainless steel with a jobber length design in a pack of 12.

The product is ideal for drilling through tough materials, including stainless steel, cast iron, and other alloys.

This drill bit set is ideal for drilling through hardened metal, stainless steel, wood, and cast iron.

Ideal for drilling hard materials such as cast iron, heat-treated steel, and stainless steel with a straight shank.

Ideal for drilling on mild steel, copper, aluminum, zinc alloy, and other metals with a 3/16" diameter.

1. Bosch Co14b 14-Piece Cobalt M42 Metal Drill Bit Assorted Set

Looking for a set of drill bits that can handle even the toughest of materials? Look no further than the Cobalt M42 drill bit set. This set provides upgraded M42 Cobalt jobber-length bits designed for durability, high heat resistance and hardened surface for stainless steel, cast iron, titanium, light-gauge metal and aluminum.

One of the standout features of this set is the enhanced M42 alloy material. Each bit contains 8% Cobalt alloy, which delivers 10 times the life compared to standard bits. This means you can rely on these bits to last through even the most demanding of projects.

In addition to their durability, these bits are also high-heat resistant. They can withstand high-temperature applications for extended periods of time, making them perfect for those long, intense drilling sessions.

The thick web-helix design of these bits provides additional stability in tough applications. This design helps to prevent the bits from wandering or slipping during use, allowing you to drill precise holes every time.

The surface-hardened tip of these bits is another key feature. This tip is designed to penetrate tough abrasive materials, making it easier to get the job done quickly and efficiently.

This set includes a range of sizes, from 1/16" all the way up to 1/2". This gives you plenty of options for tackling a variety of different projects.

2. Metal Master Kit: 10 Amoolo Cobalt Bits

Introducing the 10-piece set of 1/4" Cobalt Drill Bits, designed to fit most power drills available on the market. These drill bits are made of industry-grade M35 high-speed steel, which is much harder than the standard HSS used in other similar sets. In fact, they contain 5% cobalt, which increases their wear resistance and durability.

This set of drill bits features a fully ground process and 135° split point design. The spiral groove is fully ground, which enables it to clear particles quickly, reduce friction, and heat for a faster and cooler drilling performance. Meanwhile, the 135° split point with a straight shank prevents walking and enables precise and faster drilling. What's more, you won't need a center punch for these drill bits!

These drill bits are not only suitable for cutting through hard metals such as stainless steel, steel, sheet metal, and cast iron, but also for softer metals, plastic, aluminum alloy, and wood. However, it's important to pay attention to speed, pressure, and heat control during drilling.

The set comes with a portable plastic case that allows for easy storage and organization. Additionally, if you're not fully satisfied with this product, you can contact the manufacturer within 90 days for a 100% refund or replacement.

3. Cobalt M35 Metal Drill Bit Set – Powertec

This 5-piece Cobalt Jobber Drill Bit Set is a must-have for anyone who needs to drill through tough materials. The set includes five 5/16-inch diameter bits, each with an overall length of 4 1/2 inches and a flute length of 3 1/4 inches. These drill bits are specifically designed for use on metal, stainless steel, nickel alloy, cast iron, and other tough materials.

Crafted with the highest quality M35 cobalt, these drill bits are incredibly durable and resistant to wear and tear. Their high-speed steel construction makes them ideal for use in high-abrasive environments, and their optimal heat treatment ensures that they can withstand even the toughest drilling conditions.

One of the standout features of these drill bits is their 135-degree split point design. This design allows them to penetrate through tough materials quickly and with less pressure needed, minimizing bit walking and ensuring a crisp, centered drill hole that doesn’t require a center punch.

These drill bits are incredibly versatile and can be used in both keyed and key-less drill chucks. Additionally, their tips can be sharpened to ensure peak-performance readiness at all times. Whether you're a professional metalworker or a DIY enthusiast, this set of cobalt jobber drill bits is a high-quality addition to your toolkit.

4. Speedysteel 20mm Drill Bit For Any Material

This drill bit set is a must-have for any DIY enthusiast or professional in need of a reliable and versatile tool. With a cutting edge diameter of 20mm and a shank diameter of 10mm, these bits are perfect for most general purpose applications. The cutting edge length of 55mm and total length of 150mm make these bits suitable for a wide range of projects, whether you're drilling through metal or wood.

Made from high speed steel, these twist drill bits offer a combination of hardness and toughness for wear resistance. The reduced shank design allows for greater size range capacity of a portable drill chuck. Additionally, the common flute and overall length make for minimal adjustment during tool changes. The sharp and spiral cutting edge provides neat and smooth cuts, while the black and gold oxide finish adds durability and corrosion resistance to the bits.

The black and gold dual coating gives these bits a premium look and feel, while also allowing for better lubrication during use. The spiral groove design facilitates the export of metal chips, saving time and effort during operation. These bits are suitable for use on a wide range of materials, including stainless steel, aluminum alloy, iron, copper, brass, wood, plastic, and other metals. They can be used with hand drills, bench drills, and other types of drills.

In addition, the tri-flat design on the shank of the drills are constructed for tighter chucking, maximizing security for precise holes. With these features and benefits, this drill bit set is a versatile and reliable choice for any project.

5. Pro Steel Cobalt Drill Set, Made In Usa.

This set of cobalt drill bits from Century is a reliable and efficient tool for those who need to work with hard materials. With a range of sizes included, from 1/16" to 3/8", this set is versatile enough to handle a variety of jobs.

Made from M35 steel with 5% cobalt, these drill bits are designed to withstand high temperatures and maintain their strength even when used with tough materials like stainless steel. They have a 12x life rating compared to competitive cobalt drill bits, making them a cost-effective choice for those who need reliable tools for their work.

The 135-degree quick-cut points on these drill bits are self-centering, which means they penetrate faster and with less pressure than other bits. This design ensures that the bit will not "walk or wander" on the starting surface, which helps to maintain accuracy and precision during drilling.

These cobalt drill bits are best used in power units with a RPM speed of 1500 or more for maximum efficiency. With their heat resistance and self-centering design, they are a great choice for those who need to drill through hard materials quickly and accurately.

6. 1/4-Inch Cobalt Steel M35 Jobber Length Twist Drill Bits For Hard Metal, Stainless Steel, Pack Of 12

Looking for a reliable set of drill bits that can handle tough, hard metals like stainless steel? Look no further than this set of 12 cobalt drill bits from an industry leader in precision tooling.

These drill bits are designed with precision in mind, with a jobber length of 1/4 inch cutting diameter, a 2-3/4 inch flute length, and a 4 inch overall length. They also feature a 135 degree split point and a 3-flat shank, ensuring that you get clean, accurate cuts every time you use them.

What sets these cobalt drill bits apart from other options on the market is the fact that they're made from high-speed steel and 5% cobalt. This unique combination provides higher heat resistance thanks to the cobalt steel's high red hardness, ensuring that these drill bits will last much longer than typical hss drill bits. Additionally, the cobalt drill bit's hardness is uniform throughout the entire material, so they can be repeatedly sharpened without damaging the cutting edge. This means you'll be able to drill more than with other types of bits, providing you with a reliable tool for all your drilling needs.

This set of 12 cobalt drill bits comes complete with a handy storage case, making it easy to keep your tools organized and accessible. Whether you're working on a DIY project at home or tackling a tough job at work, these drill bits are sure to become an essential part of your toolkit. So why wait? Invest in this set of high-quality cobalt drill bits today and get ready to tackle any drilling project with ease and confidence!

7. Cobalt Precision Drill Set By Drill America

This impressive set of jobber length drill bits boasts a total of 29 pieces, ranging in inch sizes from 1/16" to 1/2" with 1/64" increments in between. Made from cobalt steel, these drill bits offer an extended tool life compared to high-speed steel drill bits, making them ideal for drilling through even the toughest of materials.

Featuring a gold oxide finish, these drill bits are not only visually appealing, but also highly functional. The finish acts as a lubricant, ensuring smooth and easy drilling, while also providing wear resistance to keep the bits in great condition for longer.

Equipped with a self-centering 135-degree split point, these drill bits are designed to penetrate hard materials with ease, without the need for a pilot hole. Additionally, the split point produces small chips, reducing the risk of clogging and allowing for a more efficient drilling experience.

These top-quality drill bits meet ANSI specifications, ensuring that they are manufactured to the highest possible standards. Whether you're a professional or a DIY enthusiast, this set of jobber length drill bits is an excellent addition to any tool collection. With the ability to tackle a wide range of projects and materials, these bits are sure to impress.

8. Behappy 29pc Cobalt Drill Bit Set

The Drill Bit Set is a comprehensive kit that comes with 29 different sets of drill bits. Each set includes a specific size that ranges from 1/16" to 1/2". This M35 twist drill bit set is designed to meet all your drilling needs, whether you need to drill through hard metals, rigid plastics, or wood.

The M35 Cobalt drill bits that come with the set are made from high-quality materials that effectively drill rigid and high-tensile strength materials. These drill bits are especially suitable for cutting hard metals such as stainless steel, cast iron, super alloys, titanium alloys, and even soft materials.

One of the key features of this cobalt drill bit set is the 135-degree point nib and twist design. This design improves the cutting speed, self-centering, prevents walking, and speeds up the removal of debris and particles. The cobalt drill bit set can be effectively used for most hard and soft objects, making it a versatile tool to have in your toolkit.

The HSS cobalt drill set is ideal for hardened steel and offers excellent cutting performance. The 29 sets of drill bits can be used for a long time, and the blades are hardened and polished to improve sharpness, ensuring precise cutting without any shake.

The cobalt drill bit set comes with a portable rose case that is made with German craftsmanship. The rose case is of higher quality and appearance than traditional iron boxes, making it a better option for storage and organization. The drill set is suitable for most brands on the market, and the reliable quality and considerate service ensure customer satisfaction.

If you have any questions or concerns about the product, the manufacturer provides excellent customer service and is willing to address any issues that may arise. The Drill Bit Set is a must-have for anyone looking for a comprehensive set of drill bits that offers excellent cutting performance and versatility.

9. Cobalt Power Drill Bit Set For Tough Materials.

This kit includes ten drill bits of the same size, making it a versatile addition to any toolbox. The 135°Quick-Cut points are self-centering, ensuring an accurate and neat cut every time. These points penetrate quickly with less pressure and prevent the bit from "walking" or "wandering" during use.

These drill bits have excellent performance due to their extreme heat resistance. The straight shank allows for firm holding and accurate centering, making them suitable for standard drill chucks and regular round collet chucks. Not only are these bits effective for cutting hard metals like stainless steel and cast iron, but they are also ideal for use on softer materials.

The twist drill bits come housed in a plastic case, making them easy to store and transport. This feature allows for convenient access to the bits whenever and wherever they are needed, making them perfect for at-home projects.

10. Metal Twist Drill Bits – 12 Pack

The Classic M2 High Speed Steel construction with Bright Finish is a proven performer when it comes to durability and capability. This 12-piece set is made with HSS M2 steel, boasting a Rock wall Hardness Level of HRC 62-63, ensuring superior strength and hardness.

Packaged in a convenient plastic bag, these drill bits have a diameter of 3/16 inch, a total length of 3-1/2 inch, and a working length of 2-5/16 inch. They are ideal for both professional and DIY use, perfect for working with metal, wood, and plastics. However, it is important to note that they are not suitable for use on concrete, masonry, or stainless steel.

The 135 Tip & Twist Design of these drill bits is engineered to increase cutting speed with self-centering, preventing walking and ensuring precise, accurate drilling every time. This design also clears chips and particles faster, helping to keep the work area clean and clear.

Best Drill Bits For Stainless FAQs

Can carbide drill bits be used for drilling stainless steel?

Yes, carbide drill bits can be used for drilling stainless steel. Carbide is a popular material for drill bits due to its hardness and durability, making it suitable for drilling through tough materials like stainless steel. However, it is important to note that not all carbide drill bits are created equal and some may perform better than others when used for drilling stainless steel.

When selecting carbide drill bits for drilling stainless steel, it is important to consider the coating, the point geometry, and the overall quality of the bits. Titanium or black oxide coatings can help reduce heat buildup and friction, which can prolong the life of the bit and prevent damage to the stainless steel. Additionally, a point geometry that is designed for drilling through tough materials, such as a split point or a four-facet point, can help prevent the bit from wandering or slipping while drilling.

In summary, carbide drill bits can be used for drilling stainless steel, but selecting the right bit for the job is crucial for achieving the best results.

Can regular drill bits be used for drilling stainless steel?

Regular drill bits can be used for drilling stainless steel, but they are not the most effective option. Stainless steel is a hard and tough material that can damage regular drill bits due to its high resistance. Therefore, it is recommended to use drill bits specifically designed for drilling stainless steel. These drill bits are made of high-speed steel or cobalt, which provides greater strength and durability to drill through tough materials like stainless steel.

If you are using a regular drill bit to drill stainless steel, it is important to go slow and apply minimal pressure to prevent the bit from overheating and breaking. It is also recommended to use lubrication to keep the drill bit cool and reduce friction. However, for the best results, it is always advisable to use the right tool for the job. So, investing in stainless steel drill bits will save you time and money in the long run, and ensure that your drilling is precise and efficient.

How do I extend the life of my drill bits when drilling stainless steel?

Drilling stainless steel can be tough on drill bits, as the material is hard and can cause excessive heat buildup. However, there are several steps you can take to extend the life of your drill bits when working with stainless steel.

First, use the correct type of drill bit. Cobalt drill bits are more durable and can withstand the high heat generated by drilling stainless steel. Additionally, make sure the drill bits are sharp before use. Dull bits are more likely to overheat and break.

Second, use a lubricant to reduce heat and friction. Cutting oil or a specialized lubricant designed for stainless steel drilling can help keep the bit cool and reduce wear and tear.

Third, reduce the drilling speed and apply less pressure. Slow and steady drilling with less force can help prevent excess heat buildup and prolong the life of the drill bit.

Lastly, be sure to clean and maintain your drill bits after use. Remove any debris or metal shavings and store them in a dry, cool place to prevent rusting or damage.

By following these tips, you can extend the life of your drill bits when drilling stainless steel, saving you time and money in the long run.

How do you choose the right size of drill bit for stainless steel?

When it comes to drilling through stainless steel, choosing the right size of drill bit is crucial to achieving accurate and clean cuts. The first step in selecting the right size of drill bit is to determine the size of the hole that you want to create. Once you have determined the size of your hole, you can then refer to a drill bit size chart to find the corresponding drill bit size.

It's important to note that stainless steel is a hard material, which means that it requires a bit more pressure and a slower drilling speed to prevent the drill bit from overheating or breaking. This also means that you may need to use a larger drill bit size than you would for softer materials like wood or plastic.

It's also recommended to use high-speed steel (HSS) or cobalt drill bits when drilling through stainless steel, as they are specifically designed to handle the hardness of the material.

In summary, choose the right size of drill bit for stainless steel by determining the size of the hole needed, referring to a drill bit size chart, and using high-speed steel or cobalt drill bits for best results.

What are the best materials for drill bits for stainless steel?

When it comes to drilling through stainless steel, the choice of drill bit material is crucial for achieving a clean and efficient cut. The best materials for drill bits for stainless steel are high-speed steel (HSS), cobalt, and carbide.

HSS drill bits are the most common type of drill bits used for drilling through stainless steel. They are made from a high carbon steel with added elements such as tungsten, vanadium, or cobalt, which makes them stronger and more heat-resistant than regular steel drill bits. HSS drill bits are perfect for drilling through soft and thin stainless steel sheets.

Cobalt drill bits are the next step up from HSS drill bits when drilling through thicker stainless steel sheets. They are made from a high-speed steel with 5-8% cobalt added to the mix, making them much harder and more durable than HSS drill bits. Cobalt drill bits are also heat-resistant, making them ideal for drilling through hard stainless steel materials.

Carbide drill bits are the most expensive and durable option for drilling through stainless steel. They are made from a combination of tungsten carbide and cobalt, which makes them highly resistant to heat and wear. Carbide drill bits are ideal for drilling through hard stainless steel alloys and are commonly used in industrial settings.

In conclusion, the best materials for drill bits for stainless steel are HSS, cobalt, and carbide. The choice of drill bit material will depend on the thickness and hardness of the stainless steel material being drilled.

What is the best brand of drill bits for drilling stainless steel?

When it comes to drilling stainless steel, it's important to have the right drill bit in order to achieve optimal results. After researching and testing various brands, I can confidently say that the best brand of drill bits for drilling stainless steel is the Norseman brand.

Norseman drill bits are made with high-speed steel and have a unique point design that allows them to easily penetrate hard materials like stainless steel. They also have a special surface treatment that reduces friction and prolongs the life of the bit.

Another great aspect of Norseman drill bits is their versatility. They can be used in a variety of applications, including drilling through metal, wood, plastic, and more. This makes them a worthwhile investment for any DIY enthusiast or professional contractor.

Overall, I highly recommend Norseman drill bits for anyone looking to drill through stainless steel. They offer exceptional performance, durability, and versatility that are hard to beat.

What is the best drill bit design for drilling stainless steel?

When it comes to drilling stainless steel, choosing the right drill bit design is crucial for achieving the desired results. The best drill bit design for drilling stainless steel is the one that can resist the high heat and friction generated during the drilling process. A split point drill bit is the most recommended design for drilling stainless steel. It has a pointed tip that splits the material, making it easier to drill through. Split point drill bits also have a shorter chisel point, which reduces the amount of heat generated during drilling. This design feature helps prevent the drill bit from overheating and becoming dull quickly. Additionally, using a cobalt drill bit is also an excellent choice for drilling stainless steel. Cobalt is a high-speed steel that can withstand high temperatures, making it ideal for drilling harder materials like stainless steel. In summary, using a split point or cobalt drill bit design can help you achieve the best results when drilling stainless steel.

What is the best drill bit set for drilling stainless steel?

When it comes to drilling through tough materials like stainless steel, it is important to use the right drill bit set for the job. The best drill bit set for drilling stainless steel should be made of high-speed steel (HSS) or cobalt, which are harder and more durable than standard steel.

One highly recommended option is the DEWALT DW1361 Titanium Pilot Point Drill Bit Set. This set includes 21 pieces made of titanium-coated HSS, which provides greater longevity and improved drilling speed. The pilot point design also helps to prevent walking and allows for precision drilling.

Another excellent choice is the IRWIN Tools Cobalt M-35 Metal Index Drill Bit Set. These cobalt drill bits have a 135-degree split point design that reduces walking and increases accuracy. The set includes 29 pieces ranging in size from 1/16" to 1/2", making it versatile for a variety of drilling tasks.

Ultimately, the best drill bit set for drilling stainless steel depends on your specific needs and preferences. Be sure to choose a set that is durable, reliable, and compatible with your drill.

What is the ideal coating for drill bits used on stainless steel?

When it comes to drilling stainless steel, choosing the right coating for the drill bit can make a significant difference in the performance and longevity of the tool. The ideal coating for drill bits used on stainless steel is Titanium Nitride (TiN) coating. This coating is extremely hard and has a low coefficient of friction, which makes it resistant to wear and tear. Additionally, the coating reduces friction between the drill bit and the metal, which helps to prevent overheating, which could cause the bit to dull or break.

Another popular coating for drill bits used on stainless steel is Titanium Carbonitride (TiCN). This coating has similar properties to TiN but is even harder, making it suitable for more demanding applications. However, TiCN is more expensive than TiN, so it may not be the most cost-effective option for less demanding applications.

In conclusion, when choosing the ideal coating for drill bits used on stainless steel, TiN is the most widely used and reliable option. However, for more demanding applications, TiCN may be a better choice if budget allows.

What safety precautions should I take when drilling stainless steel with drill bits?

When drilling stainless steel with drill bits, it is important to take certain safety precautions to prevent injuries or damage to the equipment. Here are some tips:

1. Wear protective gear: Safety goggles, gloves, and a dust mask are necessary to protect your eyes, hands, and lungs from dust, debris, and metal shavings.

2. Use the right drill bit: Choose a drill bit that is specifically designed for stainless steel and ensure that it is sharp and in good condition.

3. Lubricate the drill bit: Applying lubricant on the drill bit and the drilling area will help reduce friction and heat, which can cause the drill bit to break or dull.

4. Secure the material: Clamp the stainless steel securely to prevent it from moving while drilling, which can cause the drill bit to slip and cause injury.

5. Keep a steady pace: Avoid applying too much pressure or drilling too fast, as this can cause the drill bit to snap or overheat.

6. Allow the material to cool: Stainless steel can become extremely hot during drilling, so it’s important to let the material cool down before handling it.

By following these safety precautions, you can ensure a safe and successful drilling experience.

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