Top 10 Best Drill Bits for Hardened Steel Reviews 2021

Selecting the right drill bits for hardened steel can be a bit overwhelming. While you can use a steel drill bit for your home improvement projects, you are different when dealing with hardened steel. Other drill bits can work well on materials like plastic and wood. On the other hand, hardened steel is tougher, so it demands the best drill bits for hardened steel.

If you use the wrong bits on hardened steel, you will probably destroy your project or even make the big break. It would be best to understand that hardened steel has a combination of metals like stainless steel, titanium, and iron. These metals need to be heated up to a temperature of 1450-1500 degrees F for a bit to pierce through.

You can quickly get drill bits for hardened steel without spending too much money. We will take you an in-depth review and guide on recommended drill bits for hardened steel that will help you complete the job in less time.

Top 10 Best Drill Bits for Hardened Steel Reviews

Drilling metals requires a tougher drill bit compared to drilling wood and plastic. If you use a drill bit on hardened steel and find out that it tapers out, then this is a sign that you are using the wrong drill bit. You need to buy cobalt bits that are specially made for drilling through hardened steel.

This type of drill bit features a blunt tip, so it is not pointed like other drill bits. When you are drilling hardened steel, apply some oil to the metal to lubricate the drill. It also reduces the amount of heat that results from drilling. Additionally, you can consider drilling slowly to reduce overheating.

So, how do you pick the right drill bits for hardened steel? Well, we have comprehensive research and analysis of top drill bits suitable for hardened steel that you should consider. Scroll down to find top reviews and some essential buying tips.

1. Dewalt titanium drill bit set Review – dewalt dw1354 14 piece titanium drill bit set.

dewalt drill bit set

When it comes to hand and power tools, Dewalt is the leading brand that provides reliable tools. This drill bit set is recommended when drilling hardened steel, and it gives better performance. Unlike other drill bits, this one features a titanium pilot point to extend its life. Therefore, you can use it for many years without breaking it.

Additionally, the titanium pilot points begin on contact, and they ensure no walking takes place. This drill bit set also includes a tapered web to give you more durability and reduce breaking chances. You will find some standard 14 drill bits that you need for various metalworking projects in the set. You will also love that the drill bits have no-spin shanks to ensure the bits do not slip.

The drill bits feature titanium material and coating to give a longer life. You will also find a strong carrying case that promotes organization and helps you transport your set conveniently.


  • The bits can drill a wide range of materials.
  • They have titanium coating to extend their life.
  • You will get different sized drill bits.
  • The carrying case is available for easy transportation.
  • The drill bits are versatile, durable, and easy to remove.


  • Great drill bits, but it would better if they were properly heat treated.
  • The titanium coating strips off easily.
  • They don’t drill through concrete or block.

2. Hymnorq Metric M35 Drill Bits- best drill bits for hardened stainless steel.

Hymnorq Metric M35 Twist Drill Bit sets

Drill through tough metals like cast iron and stainless steel with this amazing Hymnorq Metric M35 drill bit. The set has 13-piece drill bits that you can use for different applications. The drill bits feature cobalt steel material and bronze oxide finish type to maximize their durability. Unlike other drills, these are heat resistant to extend their life and provide faster cutting.

You don’t need to make a center punch with this drill bit. It features 135-degree quick cut pints that self-center and provides faster penetration without using more pressure. Therefore, you will not experience wandering and walking like seen in other drill bits. Additionally, they have a straight shank that gives room to help you hold and center it accurately.

It is also recommended to use them at the proper rpm to achieve the desired efficiency. The drill bits will suit all your metalworking projects. You can also use them on soft materials, but they are not suitable for high carbon steel and hardened steel. They come in different sizes, and you will find a carrying case to organize them well.


  • Great drill bit set for metalworking.
  • They allow easy penetration with less pressure.
  • Extremely heat resistant to give you durable use and faster penetration.
  • Made with a durable material and quality finish.
  • High spiral design makes removal easy.


  • Not as great as you would like.
  • Good for wood but not metal.
  • The drill bits are undersized.

3. Bosch titanium drill bit set Review – Tough Titanium Drill Bit Set.

bosch drill bit set

This is another top drill bit that can handle high0-carbon steel and other tough materials. The 9-piece set lasts three times more than other high-speed drill bits you will come across. The drill bits feature a cooling shield coating that gives you less friction, so very little heat will be generated. Additionally, they have impact-rated shanks that make them suitable for tough applications.

You will not experience skating with these drill bits. They have a no-skate tip that minimizes bit walking and ensures you don’t need a center punch to get a precise clean outcome. You will also find a hex shank that works well for impact and drill drivers.

Some drill bits are tough to remove because of their spiral designs. You will not experience difficulty removing the drill bits because they have a long flute. You will get effective material removal as well as universal drilling. All the pieces are impacted tough so that you can use them well on various materials.


  • the great coating that reduces friction and heat.
  • The drill bits last longer.
  • They are suitable for hard materials.
  • Versatile and provide great precision.
  • Long flute and spiral design make removal easy.


  • Some break even after drilling soft materials.
  • A few of them are not straight, and they wobble.
  • They did don’t seem to be sharp.

4. DEWALT Cobalt Drill Bit Set (DWA1240) with Pilot Point, 14-Piece.

dewalt cobalt drill bit set

If you want to drill tough metals like stainless steel and the like, this drill bit set will work exemplary well for you. It is one great industrial set that is purposely made to provide durable performance and maximum speed. All the bits have a pilot point and a split-tip to ensure no walking and give you more control.

You can use this set for common applications like I-beams, drilling angle iron, and stainless steel, among other metals. The drill bit set comes in a tough case designed to optimize space and enable easy organization. The lid is clear, so you can easily see the contents in the package.

Moreover, the case has a clip latch that helps you get a secure closure. The drill bits have a patented bit-bar design to make easy material removal. You will also enjoy maximum speed and more life when drilling other metals.


  • You will get more control since no bit walking.
  • Industrial strength for enhanced durability and life.
  • Convenient and tough case for storage and organization.
  • Accurate and give you value for money.
  • Great drill bits for drilling hard metals.


  • Not as heavy-duty as advertised.
  • The drill bits break easily.
  • Not durable as they have promised.

5. TACKLIFE 5PCS Titanium Step Drill Bit Set.

TACKLIFE 5PCS Titanium Step Drill Bit Set

These are high-quality drill bits made of a tough high-speed steel and titanium coating to give durable application. The drill bit’s bit’s titanium coating and sharpness make them suitable for a wide application. You can use them on steel sheets, copper, aluminum sheets, wood, and plastic. The pieces come in a protective aluminum case for easy storage and ensure they done don’t get dull.

The titanium coating also plays a huge role in ensuring you achieve the smoothness and drilling efficiency you want. Unlike other drill bits, these are high quality, and they did don’t snap like other models. Additionally, they ensure the metal scurf doesn’t fly around, which can compromise your safety.

Enjoy an increased speed with a better angle that ensures rounder holes and smoother cuts. The double cutting blade design also ensures smoother and faster cuts always. You will also love the x-type opening design, which makes removing the cutting waste easier during drilling.


  • Great value drills for home applications.
  • The drill bits work well to meet your needs.
  • Titanium coating enhances great performance and durability.
  • Great quality drill bits with increased cutting speed.
  • They are suitable for a wide range of applications.


  • Some people get them dull.
  • They are cheap but function well.
  • Some break after a few uses.

6. IRWIN Drill Bit Set (3018002) M35 Cobalt Steel, 29-Piece.

irwin drill bit set

This set comes with different sized drill bits to handle various applications. You will get 29 pieces in different sizes to suit your drilling needs. The drill bits are made of a tough cobalt material, which makes them durable. Unlike other drill bits, these have 5% more cobalt for abrasion resistance and higher heat.

You will also love the heavy-duty web construction that ensures you get optimum durability and strength. The drill bits are suitable for cutting through tough metals, hardened steel, and heavy-duty abrasion alloy materials.

They have 135- degree split point tips that offer immediate drilling while using little force. Additionally, you will not experience walking on your working surface when drilling. All the pieces come in a convenient meta index case that makes bit identification easier. The case also has a rubber over-mold to protect the drill bits from accidents. You will also find it easier to access the bits in your Jobsite by simply removing the cartridges.


  • Made of cobalt steel that offers durable life.
  • The removable cartridge makes it easier to access the drill bits.
  • Rubber over-mold case protects your drill bits from accidental droppings.
  • You will get different-sized drill bits to choose from.
  • Great drill bit set for the money.


  • They get dull after a few uses.
  • The drill bits are not as great as they look.
  • Their drilling performance is disappointing.

7. IRWIN Drill Bit Set (316015) Cobalt, 15-Piece.

irwin drill bit set (316015)

This is yet another affordable drill bit set from Irwin that has 15 pieces. The drill bits feature cobalt steel material that enhances the cutting edge life. It also ensures the drill bits maintain their cutting life even after you resharpen. Like the previous models, the pieces also have a 135-degree split point tip for effective starts on contact and require less force.

The drill bits have a durable web construction to give you reliable durability and strength. This makes them tough for drilling hard metals. You will get them in a rugged storage case that makes organization and transportation easy. The case features rubber over a mold, which is impact resistant hence protect the drill bits in case of accidentals falls. Additionally, the sliding and latch design ensure more security.


  • Quality packaging and the drill retain their cutting edge after sharpening.
  • They are durable and reasonably priced.
  • You can use them for various drilling applications.
  • Made of cobalt material to give long-lasting performance.
  • Easy drilling using less force.


  • Quality control issues
  • The case is bulky and doesn’t close well.
  • Their tips break easily.

8. HYCLAT 5pcs Titanium Step Drill Bit

HYCLAT 5pcs Titanium Step Drill Bit

Get these high-speed metal drill bits and enjoy the best application. The drill bits are made of cobalt material and have a titanium finish, which all make them durable. This 5-piece drill bit set allows up to 50 sizes. Each step can help you drill various bore diameters, so there is no need to replace the drill bits to suit multiple bore sizes regularly.

These high-speed drill bits have a durable titanium coating that ideal for drilling copper, plastic, stainless steel, aluminum, and other metal sheets. They have a double cutting blade and three-sided shank to provide smoother and faster cuts. The shank design also ensures no slipping takes place in the drill chuck.

I love this set because it gives you a wide range of applications. You can use the step drill bits to drill, chamfer, enlarge holes, or even bur. Moreover, they can work well with all types of materials without compromising the performance. The drill bits come in a protective case made of aluminum that ensures they are safe and don’t get blunt.


  • it makes a perfect gift for DIY enthusiasts.
  • Durable construction and reliable performance.
  • They can cut through different types of materials.
  • Great thickness and have a good carrying case.
  • Nice tip design to provide faster cuts and multiple applications.


  • Bit gets dull after drilling a few holes.
  • They feel cheap and break easily.
  • The case provided is not aluminum as advertised.

9. MASTERCRAFT Titanium Twist Drill Bit Set

MASTERCRAFT Titanium Twist Drill Bit Set

Drill through wood, metal, and plastic easily with this drill bit set. The bits have a titanium coating, which is known to minimize friction, which can result in heat. Unlike other high-speed drill bits, these last 6 times longer and give you the performance you intend. They feature 135-degree split points, and they start drilling immediately they get into contact with the surface. You will enjoy better use without walking.

Additionally, they eliminate debris, chips, and dust from the bit, hence minimizing friction, resulting in effective drill cooling. The size of the drill bits ranges from 1/16 to ½ inches. You can use the larger bits to handle all your DIY projects, general building, or home maintenance.

These drill bits are also multipurpose so that they can handle different types of jobs. You can use them on softwood, hardwood, steel, fiberglass, and PVC. You will get the set in a convenient heavy-duty case that holds all the 230 drill bits for effective storage.


  • Long-lasting high-speed drill bits.
  • They provide a wide range of applications.
  • They feature durable construction and coating to improve their use.
  • Sized differently so you can choose smaller or larger bits based on your projects.
  • Come in a durable carry case for organization and storage.


  • The cutting edge would have been sharp and straight.
  • Their split points are not even.
  • The drill bits burn and break easily.

10. Drill America (DWD29J-CO-PC) 29 Piece M35 Cobalt Drill Bit Set.

Drill America Cobalt Drill Bit Set

Drill America drill bits are great if you want high-quality bits to drill through titanium stainless steel, Inconel, and other high tensile strength materials. The bits have a 135-degree split point that ensures self-centering and eliminates thrust. Unlike the 118-degree top bits, these pieces do not walk when you are drilling.

The set includes 29 useful bits that range in fractional sizes from 1/16 to ½ inches by 1/64 inches increment. You will get the set in convenient storage that provides easy hanging to give you quick access. It is easy to hang the drill index around your waist and keep your hands free.

The plastic case provides easy handling, and it has a beautiful design that fits all the drill bits perfectly. The case fits anywhere, even in your car, and you can hold it in one hand. These bits have a gold oxide finish that lubricates them, ensuring they don’t wear out.


  • Great drill bits that meet ANSI requirements.
  • Easy penetration without clogging or chipping.
  • Cobalt steel material makes them durable than other bits.
  • Nice gold oxide finish that ensures they don’t wear easily.
  • The bits work well with different types of materials.


  • The drill bits break easily.
  • Do not stay sharp even on mild steel.
  • They cut too slow.

Choosing the Best Drill Bits for Hardened Steel 

An average drill bit can do a great job when you are drilling materials like wood and plastic. However, if you are drilling hardened steel, then you need heavy-duty drill bits purposely designed for the job. Without the right drill bits for hardened steel, you will not be able to drill through steel.

So, how do you pick the right drill bits for hardened steel? Before you pick the right drill bits, you need to consider these essential factors.

Drill Bit Materials 

What type of material do you want for your drill bits? There are various materials that you can consider which work well for hardened steel. They include:


This is a tougher material that works well for hardened steel. The only problem with carbide material is brittle so that it can break easily. You can only choose carbide material if your drilling is recreational but not for professional purposes.

High-Speed Steel

It is ideal for drilling hardened steel since it works well for plastic, wood, and soft steel. This makes it a perfect option for people who want an affordable drill bit.


This is a premium material that is used to make many premium drill bits. It can penetrate various materials, including stainless steel and hardened steel.

Construction and Drill Bit Design

The construction and the design of the bit also matter because it affects the drilling performance and speed. It also determines whether you will experience flying metals or not when drilling.


Working with shorter drill bits provide accuracy. But if you need extended and deeper penetration, a longer drill bit is better. However, you should be careful when dealing with longer bits because they break easily.


You can either choose drill bits with a standard angle of 118 degrees, but if you want to drill hardened steel, a drill bit with 135 degrees is better.

Flute Design

The flute design is essential to consider because it allows easy removal of chutes from the hole. Additionally, it determines the effeteness of your drill bits. Standard bit design have-30 a degree angle, which is great for hardened steel. Bits with an outstanding design are suitable for plastics.


What type of coating do you want? The coating you choose affects your drill bit quality and its performance. Titanium coating is great for hardened steel because it minimizes friction and provides great chip flow. It also works well for non-ferrous materials.

Frequently Asked Questions

Q: How to use a drill

A: A drill is an essential tool for DIYers and homeowners. If you bought your drill, the next thing you should understand is how to use it correctly. Your drill should come with basic items like a battery, battery charger, drill bits, and driver bits. After that, you should familiarize yourself with basic drill controls like the chuck, gear switch, torque control, reverse switch, battery, and trigger switch.

You should also know the correct drill bit size to use, which should always correspond to the drill bit’s height. When driving the screws, do it slowly and use mow to middle-speed setting to avoid splitting the anchor. You should know when using a drill is to drill a small hole first when screwing anything on wood. If you are hangings things on the wall, hold the item against the wall and use your drill to mark the point where the screws will be before you drill.

Q: What is the hardest metal

A: There are many strong metals that you can find. In regards to the tensile strength, tungsten metal is the strongest among all-natural metals with 142,000 psi. When it comes to the impact strength, tungsten metal is weak since it is brittle to shatter upon impact. Titanium is another strong metal with 63,000 psi tensile strength. However, titanium has a lower score in regards to compression strength. Knowing the strongest metal can be challenging in a nutshell because it all depends on what you want to do with it.

Q: How to drill stainless steel

A: At first, drilling stainless steel seems like a lot of work for some people. The material is hard, and you also need to use carbide or cobalt bits, which are expensive and take some time to drill. If you treat stainless steel like other metals and apply the needed pressure for drilling a hole, you will most likely experience overheating and breaking. This is something you can expect, so you need to allow the metal and bit to cool.

Drilling stainless steel requires patience, and you should drill it in short bursts while using firm pressure. Doing this will take less time, and you will not experience imperfect holes or your drill bits getting damaged. Additionally, you should have a quality drill bit for the job.

Q: What kind of drill bit for metal

A: There are so many variations when it comes to drilling bits. You can get them in all sizes, shapes, and coating. So, which drill bit should you pick for metal? First, you need to understand there are various drill bit materials that you can choose. These are cobalt, high-speed steel, and carbide. You should also consider the drill point angles like 118 degrees or 135-degree self-centering. Drill bits also vary in length so that you can choose either shorter or longer ones. You can also choose various coatings like bright black oxide, TiN, and TiNC. Therefore, depending on the type of metal you want to drill, selecting the right drill bits will make your projects successful.

Q: How to make a hole in metal without a drill

A: You can still make holes in metal even if you don’t have a drill. To do this, you should get the right metal punch, which comes in various designs like spiral twist, punch pliers, two-hole twist punch, or and hole punch kit. You should do your research to determine which one is right for you. After that, gather essential supplies ole a flat face metal hammer, jeweler’s steel block, metal to punch, and a metal punch. Next, take measurements and mark your metal. Make a simple dent to guide on where to punch. Place the metal on the steel block and point the center punch to the marked hole. Use a hammer to tap the top, then punch the metal on the dimple you had made, and you will get a hole.

Related posts: Ultimate Drill bits Guide

Final Verdict & Recommendation

You will always find the right drill bit suitable for a specific task. If you need to drill tough metals like hardened steel, you need to look for the best drill bits for hardened steel. If you work with other drill bits that are not suitable for the job, you will end up with broken bits or damaged workpieces. Drill bits for hardened steel are heavy-duty and provide effective and clean cuts. From the top 10 list above, I hope choosing a drill bit right for you will not be complicated. We have given you in-depth reviews and buying tips to help you decide the right one that suits your drilling requirements.

Similar Posts

Leave a Reply

Your email address will not be published. Required fields are marked *