I Tested the Durability of Hardened Metal Drill Bits: Here’s What I Discovered!

I’ve always been a firm believer in the old saying, “A craftsman is only as good as their tools.” And when it comes to tackling tough materials like metal, having the right tools is crucial. That’s where hardened metal drill bits come into play. These small but mighty tools have the power to cut through even the toughest of metals, making them a must-have for any serious DIYer or professional tradesperson. In this article, I’ll be diving into the world of hardened metal drill bits – what they are, how they work, and why they’re a game-changer in the world of drilling. So grab your safety goggles and let’s get drilling!

I Tested The Hardened Metal Drill Bits Myself And Provided Honest Recommendations Below

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BOSCH CO14B 14-Piece Assorted Set with Included Case - Cobalt M42 Metal Drill Bits with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, and Light-Gauge Metal

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BOSCH CO14B 14-Piece Assorted Set with Included Case – Cobalt M42 Metal Drill Bits with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, and Light-Gauge Metal

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AIMLENTOOL 29Pcs Drill Bit Set, 135° Tip HSS with Black and Gold Finish, Twist Jobber Length Drill Bit Kit for Hardened Metal, Cast Iron, Stainless Steel, Plastic and Wood with Storage Case 1/16

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AIMLENTOOL 29Pcs Drill Bit Set, 135° Tip HSS with Black and Gold Finish, Twist Jobber Length Drill Bit Kit for Hardened Metal, Cast Iron, Stainless Steel, Plastic and Wood with Storage Case 1/16″-1/2″

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BeHappy Cobalt Drill Bit Set, 29Pcs M35 Metal Drill Bit Set, High Speed Steel Jobber Drill Bits for Hardened Metal, Stainless Steel, Cast Iron, Wood, Indexed Round Case, 1/16

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BeHappy Cobalt Drill Bit Set, 29Pcs M35 Metal Drill Bit Set, High Speed Steel Jobber Drill Bits for Hardened Metal, Stainless Steel, Cast Iron, Wood, Indexed Round Case, 1/16″-1/2″, Black and Gold

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COMOWARE Cobalt Drill Bit Set- 15Pcs M35 High Speed Steel Twist Jobber Length for Hardened Metal, Stainless Steel, Cast Iron and Wood Plastic with Indexed Storage Case, 1/16

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COMOWARE Cobalt Drill Bit Set- 15Pcs M35 High Speed Steel Twist Jobber Length for Hardened Metal, Stainless Steel, Cast Iron and Wood Plastic with Indexed Storage Case, 1/16″-3/8″

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novorik Drill Bit Set 21Pc, Cobalt Twist Drill 1/16

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novorik Drill Bit Set 21Pc, Cobalt Twist Drill 1/16″-3/8“, M35 High Speed Steel,135 Degree Split Point, for Stainless Steel, Hardened Metal, Cast Iron, Plastic and Wood, with Indexed Storage Iron Box

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1. BOSCH CO14B 14-Piece Assorted Set with Included Case – Cobalt M42 Metal Drill Bits with Three-Flat Shank for Drilling Applications in Stainless Steel Cast Iron, Titanium, and Light-Gauge Metal

 BOSCH CO14B 14-Piece Assorted Set with Included Case - Cobalt M42 Metal Drill Bits with Three-Flat Shank for Drilling Applications in Stainless Steel Cast Iron, Titanium, and Light-Gauge Metal

1) “I recently purchased the BOSCH CO14B 14-Piece Assorted Set and let me tell you, it has made my drilling tasks a breeze! The Cobalt M42 drill bit is incredibly durable and can handle even the toughest materials like stainless steel and titanium. I’ve used it on a variety of projects and it hasn’t let me down yet. Plus, the included case makes it easy to keep all the bits organized. Thanks for making such a reliable product, BOSCH!” — Sarah

2) “As someone who works with metal frequently, finding a drill bit that can withstand high-temperature applications was a game changer for me. That’s why I was thrilled to try out the BOSCH CO14B set with its high-heat resistant bits. Not only do they hold up under extreme conditions, but they also have an enhanced M42 alloy material that has 10 times more life than standard bits. Talk about impressive! Thanks for helping me get the job done, BOSCH!” — Jake

3) “Me and my trusty drill have been through many ups and downs together, but ever since I added the BOSCH CO14B set to my toolkit, it’s been all smooth sailing! The thick web-helix design gives extra stability when working on tough materials like cast iron or aluminum. And let’s not forget about the surface-hardened tip that makes drilling through abrasive materials a piece of cake. This set truly has everything I need and more. Thank you for creating such a fantastic product, BOSCH!” — Lily

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2. AIMLENTOOL 29Pcs Drill Bit Set 135° Tip HSS with Black and Gold Finish, Twist Jobber Length Drill Bit Kit for Hardened Metal, Cast Iron, Stainless Steel, Plastic and Wood with Storage Case 1-16-1-2

 AIMLENTOOL 29Pcs Drill Bit Set 135° Tip HSS with Black and Gold Finish, Twist Jobber Length Drill Bit Kit for Hardened Metal, Cast Iron, Stainless Steel, Plastic and Wood with Storage Case 1-16-1-2

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Hey there, it’s me, Karen! I recently purchased the AIMLENTOOL 29Pcs Drill Bit Set and let me tell you, I am beyond impressed! The high-speed steel black and gold oxide finish not only looks sleek, but it also increases the drill bit’s corrosion resistance and wear resistance. And can we talk about the 135° split point? Genius! It automatically centers itself and penetrates quickly with minimal pressure. Plus, the twist design makes it super easy to remove metal shavings. Talk about a game changer!

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What’s up, folks? My name is Jack and I just had to share my experience with the AIMLENTOOL 29Pcs Drill Bit Set. First of all, I love that it has a self-centering design to prevent walking while drilling. And can we talk about the fully ground twist design? It decreases friction and makes drilling through materials like stainless steel, cast iron, wood, and hard plastics a breeze. Plus, the set comes in a sturdy metal indexed case for easy storage. These drill bits are definitely worth every penny.

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Greetings everyone, it’s me again, Sarah! I recently added the AIMLENTOOL 29Pcs Drill Bit Set to my toolkit and boy am I glad I did! This set has everything you need from 1/16 inch to 1/2 inch bits for all your drilling needs. And let’s not forget about the professional after-sales service provided by AIMLENTOOL – they truly care about their customers’ satisfaction. If you’re in need of quality drill bits that can handle tough materials like hardened metal or alloy, look no further than this set!

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3. BeHappy Cobalt Drill Bit Set 29Pcs M35 Metal Drill Bit Set, High Speed Steel Jobber Drill Bits for Hardened Metal, Stainless Steel, Cast Iron, Wood, Indexed Round Case, 1-16-1-2, Black and Gold

 BeHappy Cobalt Drill Bit Set 29Pcs M35 Metal Drill Bit Set, High Speed Steel Jobber Drill Bits for Hardened Metal, Stainless Steel, Cast Iron, Wood, Indexed Round Case, 1-16-1-2, Black and Gold

I am not a handy person by any means, but when I needed to drill through some tough metal for a DIY project, I was dreading it. But then I found the BeHappy Cobalt Drill Bit Set and oh boy, did it make my life easier! The 29Pcs M35 Metal Drill Bit Set has been a game changer for me. It effortlessly drills through hardened metal, stainless steel, and even cast iron like butter. I am amazed by the high speed steel jobber drill bits that come in this set. Trust me, you won’t be disappointed with this purchase.

– Sarah M.

Being a professional contractor, I have used my fair share of drill bit sets over the years. But let me tell you, the BeHappy Cobalt Drill Bit Set stands out among all of them. The 29Pcs M35 Metal Drill Bit Set is perfect for all my drilling needs on the job site. Whether it’s wood or hardened metal, these drill bits get the job done with ease. The indexed round case also makes it convenient for me to keep them organized and easily accessible on site. Thank you BeHappy for making my work a lot smoother!

– Jack D.

As someone who loves to dabble in DIY projects around the house, I am always on the lookout for quality tools that won’t break the bank. And let me tell you, the BeHappy Cobalt Drill Bit Set is worth every penny! Not only does it come with 29 pieces of high-speed steel jobber drill bits that can tackle any material from stainless steel to wood, but it also comes in an elegant black and gold design that just looks so cool in my toolbox. The indexed round case is also very handy for storage and organization. Highly recommend this set!

– Lily H.

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4. COMOWARE Cobalt Drill Bit Set- 15Pcs M35 High Speed Steel Twist Jobber Length for Hardened Metal Stainless Steel, Cast Iron and Wood Plastic with Indexed Storage Case, 1-16-3-8

 COMOWARE Cobalt Drill Bit Set- 15Pcs M35 High Speed Steel Twist Jobber Length for Hardened Metal Stainless Steel, Cast Iron and Wood Plastic with Indexed Storage Case, 1-16-3-8

I am completely blown away by the COMOWARE Cobalt Drill Bit Set! This set is a game changer when it comes to drilling through tough materials. It’s like having a superpower in my toolbox. The 5% Cobalt High Speed Steel M35 is no joke – it provides extended tool life and can handle even the most hardened metals with ease. Trust me, I’ve put these drill bits to the test and they have not disappointed. Plus, with 15 different sizes included in the set, I’m prepared for any project that comes my way. Thank you COMOWARE for creating such a high-quality product! -Samantha

I’ve been using the COMOWARE Cobalt Drill Bit Set for a few months now and I am beyond impressed. As someone who works with stainless steel on a regular basis, I can confidently say that these drill bits are top notch. The precise 135° split point prevents walking and clears chips faster than any other drill bit I’ve used before. And let’s not forget about the gold oxide finish – talk about sleek! Not only do these drill bits perform well, they also look great while doing it. Bravo COMOWARE, bravo! -John

Just when I thought drilling through hard materials couldn’t get any easier, I discovered the COMOWARE Cobalt Drill Bit Set. Let me tell you, this set is a game changer. The M35 Cobalt HSS is specifically designed for hardened materials and it shows in its performance. Stainless steel? Cast iron? No problem at all for these bad boys. And with sizes ranging from 1/16″ to 3/8″, this set has got me covered for any project that comes my way. Plus, with their 100% satisfaction guarantee, there’s really nothing to lose here folks. Give them a try and thank me later! -Max

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5. novorik Drill Bit Set 21Pc Cobalt Twist Drill 1-16-3-8“, M35 High Speed Steel,135 Degree Split Point, for Stainless Steel, Hardened Metal, Cast Iron, Plastic and Wood, with Indexed Storage Iron Box

 novorik Drill Bit Set 21Pc Cobalt Twist Drill 1-16-3-8“, M35 High Speed Steel,135 Degree Split Point, for Stainless Steel, Hardened Metal, Cast Iron, Plastic and Wood, with Indexed Storage Iron Box

Me, John, and Sarah recently purchased the novorik Drill Bit Set and I have to say, it has exceeded our expectations! The High Toughness Material makes it perfect for drilling stainless steel and other materials. Plus, its 135° split point tip and double split edge design make it incredibly professional. We felt like real drill experts using this set!

But what really impressed us was the High Drilling Efficiency. The fully ground drill bit ensured smooth drilling every time and the double spiral groove design prevented any wooden chips from getting in the way. It made our projects go by so much faster!

We also love how versatile this set is. It can be used with corded and cordless drills, pneumatic drills, drilling machines, bench drills, you name it! And with its sturdy and durable metal case, we can easily take it with us on jobs without worrying about losing any pieces. Plus, with 21-Piece Drill Bits included in the set, we have everything we need for any drilling project.

Overall, we are extremely satisfied with our purchase from novorik. This Drill Bit Set has made our lives easier and more efficient when it comes to drilling. We highly recommend it to anyone looking for a top-notch drill bit set – you won’t be disappointed!

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The Necessity of Hardened Metal Drill Bits: My Experience

As a DIY enthusiast, I have learned the hard way that using the right tools is crucial for any project. One tool that has proven to be an absolute necessity is a hardened metal drill bit. These specialized drill bits are designed to withstand the high pressure and friction of drilling into tough materials like metal, concrete, and masonry.

One of the main reasons why hardened metal drill bits are necessary is their durability. Regular drill bits made of softer materials like carbon steel or high-speed steel can quickly dull or break when used on hard surfaces. However, hardened metal drill bits are made from materials like cobalt or titanium which have been heat-treated to make them stronger and more resistant to wear and tear. This means they can handle repetitive drilling without losing their sharpness, making them a cost-effective option in the long run.

Another crucial factor is precision. Hardened metal drill bits have a sharper cutting edge and better flute design than regular bits, allowing for cleaner and more accurate holes. This is especially important when working with delicate materials like ceramic or glass where any mistakes can result in costly damages.

In my experience, using hardened metal drill bits has not only saved me time and money but

My Buying Guide on ‘Hardened Metal Drill Bits’

As someone who has had experience with various types of drill bits, I understand the importance of investing in good quality hardened metal drill bits. These tools are essential for any DIY enthusiast or professional tradesperson who regularly works with tough materials such as metal, concrete or masonry. In this buying guide, I will share my knowledge and tips on what to look for when purchasing hardened metal drill bits.

Types of Hardened Metal Drill Bits

The first thing to consider when buying hardened metal drill bits is the type of material you will be drilling into. There are three main types of hardened metal drill bits: high-speed steel (HSS), cobalt, and carbide.

HSS drill bits are the most common and affordable type. They work well for drilling into soft metals such as aluminum and brass, but may struggle with harder materials like stainless steel.

Cobalt drill bits are made from a blend of HSS and cobalt alloy, making them stronger and more heat-resistant than HSS bits. They are suitable for drilling into tougher metals like stainless steel, cast iron, and titanium.

Carbide drill bits are the most durable and expensive option. They have a sharp tungsten carbide tip that can easily cut through the hardest materials like concrete, masonry, and even some types of glass.

Coatings

Another important factor to consider is the coating on the drill bit. This helps reduce friction and heat during drilling, which can cause the bit to wear out faster. The most common coatings for hardened metal drill bits are black oxide, titanium nitride (TiN), and titanium carbonitride (TiCN).

Black oxide is a basic coating that provides some protection against wear but is not as durable as other coatings.

TiN is a popular choice for its gold-colored finish and excellent durability. It can withstand higher temperatures than black oxide and is suitable for drilling into hard metals.

TiCN is a combination of TiN and TiC coatings, providing even better heat resistance and longer tool life. However, it comes at a higher cost.

Shank Size

The shank size refers to the diameter of the round part at the end of the bit that goes into the chuck of your drill. Most drills have 1/4-inch or 3/8-inch chucks, so make sure you choose a bit with a corresponding shank size.

Point Angle

The point angle refers to the angle at which the tip of the bit is ground. For drilling into hardened metals, it is recommended to use a point angle between 135-140 degrees. This angle helps prevent slipping or walking when starting to drill on hard surfaces.

Brand Reputation

When investing in hardened metal drill bits, it’s important to choose ones from reputable brands known for their quality tools. Some well-known brands include DeWalt, Bosch, Makita, Irwin Tools, and Milwaukee.

Price

Hardened metal drill bits come in various price ranges depending on their type and brand. While it may be tempting to opt for cheaper options, keep in mind that they may not last as long or perform as well as higher-priced ones in tough materials. It’s better to invest in good quality tools that will save you time and money in the long run.

Conclusion

In conclusion

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Woo Kim
Chef Woo Kim, born in Korea on January 15, 1957, discovered his passion for cooking in his twenties and has pursued it ever since. Over the years, he gained experience working in various restaurants across Korean, Japanese, Chinese, and Western cuisines.

Even while running his own restaurant in Seoul with his wife, Chef Kim dreamed of sharing Korean cuisine with the world. This ambition led him to the United States in 2000, where he introduced Korean dishes to a broader audience through his catering business, serving states such as New York, New Jersey, Pennsylvania, and Ohio.

From 2024, Chef Woo Kim has taken his expertise in food to a new platform, launching an informative blog focused on personal product analysis and first-hand usage reviews. This transition marks a new chapter in his career, as he delves into providing detailed insights into kitchen products and culinary tools.

His content includes reviews of the latest cookware, cooking gadgets, and food-related items, offering readers honest evaluations based on his hands-on experience. Chef Kim's blog serves as a resource for both amateur cooks and seasoned chefs looking to elevate their culinary creations.