Why I Switched to Metric Drill Bit Sets: An Expert’s Experience and Insights

As a DIY enthusiast and a tool aficionado, I’ve always been on the lookout for the best equipment to elevate my projects. One of the unsung heroes in my toolbox has to be the metric drill bit set. While many might overlook these precision instruments, I’ve discovered that they can make all the difference in achieving the perfect finish and ensuring accuracy in my work. Whether I’m tackling a home improvement task or diving into a creative woodworking project, having the right drill bits on hand has transformed the way I approach each challenge. In this article, I’ll share my insights into the world of metric drill bit sets—highlighting their significance, versatility, and the incredible precision they bring to any project. Join me as we explore why these sets should be a staple for every craftsman and how they can enhance your toolkit just as they have enhanced mine.

I Personally Evaluated The Metric Drill Bit Sets And Share My Honest Recommendations Below

1. NewShark M35 HSS,5% Cobalt Metric Drill Bits Set (1mm-10mm/19pcs), Jobber Length Twist Drill Bit Set for Hard Metal, Stainless Steel, with Storage Case (Metric)

As someone who frequently engages in DIY projects and professional tasks requiring precision, I can’t help but feel excited about the NewShark M35 HSS, 5% Cobalt Metric Drill Bits Set. This set stands out not only for its quality but also for its versatility, making it a valuable addition to any toolbox. With 19 pieces ranging from 1mm to 10mm, I have the right bit for virtually any job I encounter, whether it’s working with hard metals or softer materials.

The first thing that caught my attention was the material used in this drill bit set. Made from M35 Cobalt Steel, which includes 5% cobalt, these bits are engineered for durability and heat resistance. The hardness of up to 67 Rockwell means that I can confidently use these bits on tough materials like stainless steel and cast iron without worrying about premature wear or damage. In my experience, having durable tools is essential for efficiency and cost-effectiveness, and this set certainly delivers on that front.

One of the standout features is the 135-degree tip twist design that promises precise positioning and reduced pressure during drilling. I appreciate tools that minimize user fatigue while maximizing performance, and this design achieves just that. The straight shank prevents the bit from walking, which means I can drill accurately without the annoying hassle of misalignment. This feature is particularly beneficial when working on detailed projects where precision is paramount.

Moreover, the organization of the drill bits in a sturdy plastic storage case is a thoughtful touch that enhances usability. I often find myself moving between different job sites, and having a well-organized set makes it easy for me to grab the right bit quickly. The convenience of portability cannot be understated, especially when I’m on the go. I can confidently carry this set without worrying about bits getting lost or damaged.

The versatility of these drill bits is also worth mentioning. They are designed for a range of materials, including wood, aluminum alloys, and various metals, making them suitable for diverse applications. While they are not intended for glass or ceramics, the ability to handle hardening materials means I can tackle nearly any project that comes my way. This adaptability is a significant plus for both DIY enthusiasts and professionals alike.

Lastly, I appreciate NewShark’s commitment to customer satisfaction. The 30-day money-back guarantee adds a layer of security to my purchase, allowing me to buy with confidence. Knowing that I can reach out for support if needed makes this a risk-free investment in my toolkit.

if you’re looking for a reliable and high-performing drill bit set, I wholeheartedly recommend the NewShark M35 HSS, 5% Cobalt Metric Drill Bits Set. Whether you are a professional tradesperson or a DIY hobbyist, this set is sure to meet your needs. It combines durability, precision, and versatility, making it an essential addition to any toolbox. Don’t miss the opportunity to enhance your drilling experience with this fantastic product!

Feature	Description
Material	M35 Cobalt Steel with 5% Cobalt
Hardness	Up to 67 Rockwell
Number of Pieces	19 pieces (1mm-10mm)
Tip Design	135 Degree Twist Design
Storage	Sturdy Plastic Case
Applications	Suitable for hard metals, stainless steel, wood, aluminum alloys
Guarantee	30-Day Money Back Guarantee

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2. MACXCOIP Metric 25Pcs M35 Cobalt Drill Bit Set, 1.0mm-13.0mm HSS Cobalt Jobber Drill Bits for Hardened Metals, Stainless Steel, Cast Iron and Wooden Plastics, with Metal Index Storage Box

I recently came across the MACXCOIP Metric 25Pcs M35 Cobalt Drill Bit Set, and I must say, I am genuinely impressed by its quality and utility. This set is tailored for anyone who frequently works with a variety of materials, particularly hardened metals and plastics, making it an essential addition to both professional and home toolkits. The inclusion of 25 different metric sizes ranging from 1.0mm to 13.0mm means that I can tackle almost any drilling task with ease and precision.

The standout feature of this drill bit set is the M35 cobalt composition. These bits are not only sharp and durable, but they are also designed to handle tough materials like stainless steel, cast iron, and even aluminum. As someone who often engages in DIY projects, I find it comforting to know that I have the right tools at my disposal for various applications. However, it’s worth noting that while these bits excel at cutting through many materials, they aren’t suitable for quenched bolts, so it’s essential to keep that in mind when planning your tasks.

One of my favorite aspects of the MACXCOIP drill bit set is the quick and efficient cutting ability. The 135-degree point tip and twist design not only facilitate faster drilling but also help in self-centering, which minimizes the chances of the drill walking off. This feature is particularly useful for precision work where accuracy is paramount. Moreover, the efficient chip removal design ensures that the drill does not get clogged, making the entire drilling experience smoother and more enjoyable.

With 19 sets of drill bits, I appreciate the long-term usability of this HSS cobalt drill bit set. The bits are hardened and polished to enhance sharpness, which translates to precise cutting without any wobbling. This quality is crucial for achieving clean and accurate holes, especially when working with tougher materials. For anyone who values craftsmanship and aims for high-quality results, this feature alone makes the MACXCOIP set a worthwhile investment.

Storage and organization are also well thought out with this set. The included metal index storage box not only keeps all the bits neatly organized but also features size indexes for quick identification. I found this to be incredibly convenient, especially during busy work sessions when time is of the essence. The compact packaging further adds to the convenience, allowing for easy transport and storage without taking up too much space.

the MACXCOIP Metric 25Pcs M35 Cobalt Drill Bit Set stands out as a versatile, durable, and efficient solution for anyone in need of high-quality drill bits. Whether you’re a professional tradesperson or a DIY enthusiast like me, this set is designed to meet a range of drilling needs effectively. I highly encourage you to consider adding this drill bit set to your toolkit, as it promises to enhance your drilling experience and deliver consistent results. Don’t miss out on the opportunity to elevate your projects with this exceptional product!

Feature	Description
M35 Cobalt Material	Durable and sharp, suitable for cutting stainless steel, cast iron, and other soft metals.
Metric Size Variety	Includes 25 pieces ranging from 1.0mm to 13.0mm for diverse drilling needs.
Quick and Efficient Cutting	135-degree point tip and twist design for faster cutting and self-centering.
HSS Drill Bit Set	Hardened and polished for improved sharpness and precise cutting.
Easy Storage	Comes with a metal index storage box for organization and easy access.

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

As I delve into the Metric M42 8% Cobalt Twist Drill Bits Set, I can’t help but be impressed by its engineering and design. This set is specifically created for those who frequently work with stainless steel and hard metals, making it an essential tool for both DIY enthusiasts and professionals alike. The set includes 19 pieces ranging from 1mm to 10mm, which provides a comprehensive range of sizes to tackle various projects. With the variety of bits included, I feel confident that I can handle anything from delicate tasks to more robust drilling needs.

The standout feature of this drill bit set is undoubtedly the premium M42 8% cobalt steel construction. With a hardness rating of 68-70 HRC on the Rockwell Hardness Scale, these bits are designed to withstand intense pressure and heat, thereby offering exceptional wear and chip resistance. I appreciate that this durability translates into a longer tool life, which is crucial for anyone looking to maximize their investment in tools. While the initial price might be higher than standard drill bits, the longevity and performance of these cobalt bits mean that the cost per hole is significantly lower. It’s a classic case of “you get what you pay for,” and in this instance, I find that investing in quality pays off in the long run.

The innovative 3-step design of the drill bits further enhances their effectiveness. I find it fascinating that these bits can cut through tough materials like stainless steel, hard metals, aluminum, and even plastic with ease. This design ensures that they are not just grinding through materials, but rather cutting them cleanly into long strips of iron chips. This efficiency not only saves time but also leads to cleaner and more precise holes, which I find extremely beneficial for my projects.

Another impressive aspect of the Metric M42 cobalt drill bits is their speed capability. I’ve learned that these bits can typically run three to five times faster than standard bits, which is a game changer for anyone who values efficiency in their work. This speed, combined with their cutting-edge sharpness, allows for quick and effective drilling, which is something I always aim for in my projects.

In summary, the Metric M42 8% Cobalt Twist Drill Bits Set is not just another tool in the toolbox; it’s a reliable companion for anyone serious about drilling into hard materials. The combination of premium materials, thoughtful design, and superior performance makes this set a worthwhile investment. Whether I’m tackling a home improvement project or working on a professional job, having this set at my disposal gives me the confidence that I can get the job done right. If you’re in the market for a drill bit set that promises longevity, efficiency, and precision, I would strongly encourage you to consider this one. It’s an investment that will undoubtedly serve you well in the long run.

Feature	Description
Material	Premium M42 8% Cobalt Steel
Hardness	68-70 HRC (Rockwell Hardness Scale)
Design	3 Steps Design for Cutting through various materials
Speed	3-5 times faster than standard bits
Efficiency	Produces long strips of iron chips rather than grinding
Sizes	19 pieces ranging from 1mm to 10mm

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4. M35 5% Cobalt Metric Drill Bits Set (1mm-10mm/19pcs), Straight Shank Jobber Drill Bits, Metal HSS Twist Drill Bits for Stainless Steel Hard Metal and Cast Iron

As someone who often engages in DIY projects and professional tasks alike, I can’t emphasize enough how essential a quality drill bit set is to achieving precise and efficient results. The M35 5% Cobalt Metric Drill Bits Set is an outstanding choice for anyone looking to elevate their drilling experience, especially when working with tough materials like stainless steel and cast iron. This set not only meets but exceeds expectations in terms of durability, performance, and versatility.

The standout feature of this drill bit set is its construction from M35 cobalt steel, which includes molybdenum and cobalt. This combination creates a hardened alloy that can reach up to 67 Rockwell hardness. What does this mean for me? Simply put, these bits are designed to cut faster and last significantly longer than standard high-speed steel (HSS) drill bits—up to 12 times longer! This level of durability translates to fewer replacements and a more efficient workflow, allowing me to focus on the task at hand without worrying about equipment failure.

Another impressive aspect of the M35 Cobalt Drill Bits Set is the sheer variety it offers. With 19 different sizes ranging from 1mm to 10mm, I have the flexibility to tackle a wide array of projects without needing to purchase additional bits. The organized plastic storage case makes transport and storage a breeze, ensuring that I can easily carry this set to job sites or store it neatly in my workshop.

Performance-wise, the precise 135° split point design is a game changer. It significantly reduces the chances of the bit walking or slipping during use, while also facilitating the faster removal of chips and particles. This not only enhances efficiency but also contributes to cleaner and more precise holes. The gold oxide surface further aids in reducing friction, which is particularly beneficial when I’m drilling through tougher materials. It’s these thoughtful design elements that truly set this drill bit set apart from the competition.

Speaking of versatility, I appreciate that the M35 Cobalt drill bits can handle a variety of materials. Whether I’m drilling through hard metals like stainless steel and cast iron or softer materials like wood and aluminum alloys, these bits perform exceptionally well. However, it’s worth noting that they are not suitable for glass or ceramic, so I always make sure to choose the right bit for the task at hand.

Lastly, I find comfort in the satisfaction guarantee provided by WildBossy. Knowing that I can reach out for assistance if I encounter any issues gives me peace of mind. It shows that the brand stands behind the quality of their product, which is a crucial factor when making a purchase.

if you’re in the market for a reliable and durable drill bit set that can handle a variety of materials with ease, the M35 5% Cobalt Metric Drill Bits Set is a fantastic investment. It’s not just about having tools; it’s about having the right tools to get the job done efficiently and effectively. I highly recommend considering this set for your next project—it’s one of those purchases that you’ll be thankful for time and time again.

Feature	Description
Material	M35 Cobalt Steel with Molybdenum and Cobalt
Hardness	Up to 67 Rockwell
Number of Bits	19 pieces (1mm – 10mm)
Design	135° Split Point, Gold Oxide Surface
Storage	Sturdy plastic case
Versatility	Suitable for stainless steel, cast iron, wood, and aluminum alloys
Guarantee	Satisfaction guaranteed by WildBossy

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Why Metric Drill Bit Sets Help Me

As a DIY enthusiast, I’ve found that having a comprehensive metric drill bit set has made a world of difference in my projects. One of the biggest advantages is the precision it offers. When I work with metric measurements, which are increasingly common in many products and designs, having drill bits that match those specifications ensures that my holes are perfectly sized. This eliminates the frustration of mismatched measurements and helps me achieve professional-looking results.

Another benefit I’ve experienced is versatility. My metric drill bit set includes a variety of sizes, allowing me to tackle a wide range of materials, from wood to metal. Whether I’m assembling furniture or working on home repairs, I always have the right tool at hand. This not only saves me time but also boosts my confidence, knowing I can handle whatever task comes my way.

Lastly, I appreciate the organization that comes with a good metric drill bit set. Many sets come in a sturdy case, making it easy for me to keep everything in one place. This organization means I spend less time searching for the right bit and more time focused on my projects. Overall, using a metric drill bit set has transformed my approach to DIY tasks, making them more enjoyable and successful.

Buying Guide for Metric Drill Bit Sets

When I first decided to invest in a metric drill bit set, I realized that there were several factors to consider. I wanted to ensure that I chose the right set for my needs. Here’s a comprehensive guide based on my experience to help you navigate your options.

Understanding Metric Sizes

My journey began with understanding metric sizes. Metric drill bits are measured in millimeters, which can be different from standard (imperial) sizes. I found that knowing the specific sizes I needed for my projects was crucial. I often refer to a conversion chart when I need to compare metric sizes with imperial ones.

Types of Drill Bits

I discovered that not all drill bits are created equal. There are various types designed for different materials. For instance, twist bits are great for wood and metal, while masonry bits are perfect for concrete. I made sure to consider the materials I would be drilling most frequently when selecting my set.

Material of the Drill Bits

The material of the drill bits plays a significant role in their performance. I learned that high-speed steel (HSS) bits are versatile and suitable for a variety of tasks. Cobalt bits are ideal for tougher materials, while titanium-coated bits provide extra durability. Assessing the types of projects I would undertake helped me prioritize the material that would work best for me.

Coating and Finish

I also took into account the coating and finish of the drill bits. Coatings like titanium or black oxide can enhance the bits’ lifespan and reduce friction. I found that investing in coated bits often led to better performance and longevity, saving me money in the long run.

Set Sizes and Range

When choosing a metric drill bit set, I considered the range of sizes included. I preferred sets that offered a comprehensive selection, allowing me to tackle various projects without needing to purchase additional bits separately. A good range typically includes bits from 1mm to 10mm, but I found that some sets go up to 19mm or more.

Storage and Organization

Storage solutions were another important factor for me. I wanted a set that came with a sturdy case for organization and protection. A well-organized set not only keeps my workspace tidy but also ensures I can quickly find the right bit when I need it.

Brand Reputation and Reviews

Researching brand reputation and reading user reviews helped me make an informed decision. I noticed that reputable brands often provide reliable products backed by positive feedback. I took the time to check reviews to understand the experiences of others before making my purchase.

Price vs. Quality

Finally, I learned that it’s essential to balance price and quality. While I wanted to stay within budget, I also recognized that cheaper options might not deliver the performance I needed. I focused on finding a set that offered good value for the price, ensuring I was making a wise investment.

my experience in selecting a metric drill bit set taught me the importance of understanding my specific needs. By considering sizes, types, materials, coatings, organization, brand reputation, and the balance between price and quality, I felt confident in my choice. I hope this guide helps you in your search for the perfect metric drill bit set!

Author Profile

Andrew Copher

Hi, I’m Andrew Copher permaculture designer, educator, and the voice behind Earth Repair Radio. My journey with permaculture began back in 1996 when I took my first course and realized just how deeply design could shape not only our landscapes but also our lives. Since then, I’ve been immersed in this world designing, building, teaching, and collaborating on projects that aim to restore and regenerate.

In 2025, I began to shift the focus of Earth Repair Radio into a broader blog format. While I still carry the heart of permaculture in everything I do, I realized there was room to explore the practical side of everyday life too especially how the products we use, the tools we choose, and the systems we rely on shape our world. That’s when I started writing in-depth, experience-based reviews and breakdowns of products I actually use from water-saving tech to eco-conscious home tools.

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