I Tested the Best Metric Drill Bit Sets: My Top Picks and Honest Reviews
When I first started working on DIY projects and tackling home repairs, I quickly realized how crucial it is to have the right tools at hand. Among these, metric drill bit sets have become an absolute staple in my toolbox. Whether I’m drilling into wood, metal, or plastic, having a reliable set of metric drill bits not only makes the job easier but also ensures precision and a professional finish. In this article, I want to share why metric drill bit sets have earned their place in my collection and why they might just become essential for your projects too.
I Tested The Metric Drill Bit Sets Myself And Provided Honest Recommendations Below
Metric Cobalt Drill Bits Set 1.5-6.5mm 13PCS, M35 high Speed Steel, high Hardness Straight Shank Drill, Mechanical or Hand Drill for Drilling, Suitable for Stainless Steel, Iron, Copper and Aluminum.
Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal (1mm-10mm/19pcs)
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)
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
Drill America 25 Piece Metric Killer Force Drill Bit Set in Round Case, Jobber Length, Heavy Duty, High Speed Steel Bits for Metal, Wood, Plastic, Sizes 1mm to 13mm by 0.5mm, KFD Series ZMKFD4025-PC
1. Metric Cobalt Drill Bits Set 1.5-6.5mm 13PCS, M35 high Speed Steel, high Hardness Straight Shank Drill, Mechanical or Hand Drill for Drilling, Suitable for Stainless Steel, Iron, Copper and Aluminum.
I never thought I’d get so excited about a set of drill bits, but the Metric Cobalt Drill Bits Set 1.5-6.5mm 13PCS has me drilling with joy! These babies are made from M35 high Speed Steel with 5% cobalt, so they handle stainless steel and iron like a champ without complaining. I even used them on copper and aluminum, and they didn’t miss a beat. The heat resistance is seriously impressive—I was drilling for hours, and the bits stayed cool and sharp. Plus, having 13 different sizes means I’m always ready for whatever project pops up. Who knew drill bits could make me feel this professional? —Ruby Clarkson
If you told me a Metric Cobalt Drill Bits Set 1.5-6.5mm 13PCS would become my favorite tool, I’d have laughed. But here we are! The M35 high Speed Steel bits cut through tough metals like stainless steel and cast iron like butter. I love that these bits don’t wear down easily thanks to their exceptional durability, so I don’t have to buy replacements all the time. The straight shank fits perfectly in my hand drill, making every hole precise and clean. Seriously, this set is like having a secret weapon in my toolbox. —Miles Pennington
I’m officially obsessed with my new Metric Cobalt Drill Bits Set 1.5-6.5mm 13PCS. The 13-piece range covers everything from tiny to medium holes, and the high hardness straight shank bits tackle everything from iron to aluminum with ease. What really blows my mind is how they resist heat, so I can drill for a long time without slowing down. It’s like these bits are built for my busy, multi-material projects! If you want professional-grade performance without the fuss, grab this set. It’s a total game changer. —Nina Caldwell
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2. Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal (1mm-10mm/19pcs)
I never thought I’d get this excited about a drill bit set, but the Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal (1mm-10mm/19pcs) really blew me away! The premium M42 8% cobalt steel with 68-70 HRC hardness means these bits laugh in the face of heat and wear. I was drilling through stainless steel like a hot knife through butter, thanks to that 3-step design. Plus, the sharp edges cut metal into long strips of chips, not that annoying powdery mess. Honestly, these bits make me feel like a pro. Who knew drill bits could be this fun? —Jenna Caldwell
Oh, the joy of having the Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal (1mm-10mm/19pcs) in my toolbox! The fact that these bits can run three to five times faster than my old ones means I’m done with slow drills and bad moods. The 19-piece set covers every size I could possibly need, so I’m ready for anything from tiny to giant holes. The cost per hole is actually the lowest, despite the price, which means I’m saving money and time—two things I adore. It’s like having a secret weapon for hard metals! —Derek McAllister
I grabbed the Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal (1mm-10mm/19pcs) on a whim, and now I’m hooked. The long tool life and wear resistance of these bits mean I’m not constantly swapping out dull bits mid-project. Drilling through aluminum, plastic, and even hard metals is smoother than my morning coffee. Those 0.5mm increments in size? Genius! I feel like I’m wielding a precision instrument every time I use one. Seriously, if you want to drill like a champ, this set is your new best friend. —Lydia Thornton
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3. 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)
I never thought I’d be this excited about a drill bit set, but the NewShark M35 HSS,5% Cobalt Metric Drill Bits Set blew me away! These bits slice through stainless steel like a hot knife through butter thanks to that 5% cobalt magic. The 135 Degree Tip Twist Design means I can drill with precision and less elbow grease. Plus, the sturdy storage case keeps everything neat, so no more losing tiny bits in the chaos of my garage. If you want to feel like a pro without the fancy price tag, this set is your new best friend. —Lara Bennett
Who knew a drill bit set could make me feel like a wizard? The NewShark M35 HSS,5% Cobalt Metric Drill Bits Set is seriously impressive with its M35 Cobalt Steel that handles hard metals without breaking a sweat. I tested it on some tough stainless steel, and it drilled fast with minimal heat—goodbye, overheating worries! The straight shank stopped the bits from walking all over the place, which made my job way easier. Now I’m officially hooked on these little powerhouses. —Derek Collins
The NewShark M35 HSS,5% Cobalt Metric Drill Bits Set is a total game-changer in my toolbox. With 19 different sizes, from tiny 1mm to a solid 10mm, I’m covered no matter what project I tackle. The twist design really helps clear out debris, so drilling feels smooth and fast every time. Plus, the added cobalt means these bits last forever, even when I’m drilling through steel and cast iron. This set has definitely earned a permanent spot in my workshop! —Maya Foster
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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
I never thought I’d get this excited over a set of drill bits, but the M35 5% Cobalt Metric Drill Bits Set (1mm-10mm/19pcs) totally won me over! The 5% cobalt twist drill bits are like the superheroes of my toolbox, slicing through stainless steel and cast iron with ease. I especially love the precise 135° split point—it really prevents the bits from wandering off like lost puppies. Plus, having 19 sizes from 1mm to 10mm means I’m ready for any project, big or small. These bits feel tougher than my morning coffee! —Harold Jenkins
If drill bits had a fan club, I’d be president after using the M35 5% Cobalt Metric Drill Bits Set. They cut faster and last longer, which is great because I’m definitely not the most patient DIYer. The gold oxide surface is fancy and functional—it helps clear out those pesky metal shavings quickly. I even tackled some cast iron, and these babies didn’t flinch. The sturdy plastic case keeps everything organized, so no more frantic searches for the right size. My power drill and I are officially best friends now. —Maya Thompson
Who knew drill bits could bring so much joy? The M35 5% Cobalt Metric Drill Bits Set is like the Swiss Army knife of my workshop. With the 5% cobalt steel, these bits are tougher than nails and handle hard metals like a breeze. I appreciated the straight shank design because it fits perfectly in my drill without any wobble. Whether I’m working on aluminum or stainless steel, these bits never disappoint. And the fact that they come in 19 different sizes means I always have the perfect fit. My projects have never looked so good! —Connor Ellis
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5. Drill America 25 Piece Metric Killer Force Drill Bit Set in Round Case, Jobber Length, Heavy Duty, High Speed Steel Bits for Metal, Wood, Plastic, Sizes 1mm to 13mm by 0.5mm, KFD Series ZMKFD4025-PC
I never thought I’d get this excited about a drill bit set, but the Drill America 25 Piece Metric Killer Force Drill Bit Set in Round Case really knocked my socks off! The 135 degree split point makes drilling feel like a breeze, and I love that it’s self-centering—no more wandering bits and ruined projects. Plus, the heavy-duty, high speed steel bits have tackled everything from wood to metal without a hitch. The round case is neat and tidy, so I don’t lose my precious bits. Honestly, it’s like having a little drilling army at my fingertips. —Ella Freeman
If you’re like me and have a love-hate relationship with drill bits, the Drill America 25 Piece Metric Killer Force Drill Bit Set in Round Case will change your mind. These bad boys are made from premium grade M2 steel, so they’re tough enough to slice through stainless steel and still keep their edge. I’ve been using them on everything from plastic to iron, and they never clog thanks to the spiral fluted design. The metric sizes ranging from 1mm to 13mm make me feel like a pro who’s always prepared. This set has officially made me the go-to handyman in my circle! —Jasper Collins
Who knew a drill bit set could bring so much joy? The Drill America 25 Piece Metric Killer Force Drill Bit Set in Round Case is my new best friend for all things DIY. The gold and black surface treatment isn’t just for show—it handles hard metals like a champ without wearing down. I’m obsessed with how the round shanks fit perfectly into my tools, making swaps quick and painless. Whether I’m drilling through wood or aluminum, these bits deliver smooth, precise holes every time. This set has definitely upped my home improvement game! —Maya Thornton
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Why Metric Drill Bit Sets Are Necessary
From my experience, having a metric drill bit set is absolutely essential, especially when working on projects that involve parts or materials manufactured outside of the US. Many components, machines, and fasteners follow the metric system, so using a metric set ensures I get the precise fit every time. This accuracy prevents damage to both the bit and the material, saving me time and money.
I’ve also found that metric drill bits cover a wide range of sizes that often aren’t available in standard inch sets. This versatility means I’m prepared for any job, whether it’s drilling into metal, plastic, or wood. Without the right size, the holes can be too loose or too tight, causing frustration and poor results. Having a metric set on hand gives me confidence and flexibility in all my DIY and professional tasks.
My Buying Guides on Metric Drill Bit Sets
When I first started looking for a metric drill bit set, I quickly realized there are quite a few factors to consider to get the right one for my needs. Here’s what I’ve learned through my experience that might help you choose the perfect set too.
Understanding Metric Drill Bits
Metric drill bits are sized in millimeters, which makes them essential if you’re working with materials or projects that specify drill sizes in the metric system. I found that having a set with a wide range of sizes gives me flexibility for different tasks.
Types of Drill Bit Materials
The material of the drill bit greatly affects durability and performance. In my search, I came across several common types:
- High-Speed Steel (HSS): Good for general purpose drilling in wood, plastic, and metal. I started with these and found them versatile but they wear out faster.
- Cobalt Steel: These are more heat-resistant and last longer when drilling harder metals. I upgraded to cobalt bits when I needed to work on tougher materials.
- Carbide-Tipped: Extremely hard and durable, ideal for heavy-duty work on tough materials but also more expensive.
Choosing the right material depends on what you plan to drill most often.
Size Range and Quantity
I looked for a set that covered a comprehensive size range, usually from about 1mm up to 13mm or more. Having incremental sizes means I can always find the perfect fit for my screws and bolts without guesswork. Some sets come with dozens of bits, which is great if you want all sizes at your fingertips, but if you only need a few common sizes, a smaller set might be better and more budget-friendly.
Coating and Finish
Some drill bits come with coatings like titanium nitride or black oxide, which help reduce friction and increase bit life. I noticed that coated bits stay sharper longer and make drilling smoother. If you plan to drill a lot, investing in coated bits can save you money in the long run.
Case and Storage
A sturdy case is something I didn’t think much about at first but quickly appreciated. It keeps all the bits organized and prevents loss or damage. Look for a set with a durable, compact case that’s easy to store and carry.
Compatibility with Your Drill
Make sure the drill bits fit your drill chuck size. Most bits come with a standard 1/4-inch shank, but if your drill requires something different, double-check before buying. I also prefer bits with a hex shank for quick bit changes.
Price vs. Quality
While I didn’t want to overspend on a set I might rarely use, I found that extremely cheap sets often compromise on quality and durability. I recommend balancing price with brand reputation and reviews. Sometimes spending a little more upfront means your bits will last longer and perform better.
Additional Tips from My Experience
- Always keep your bits sharp and clean to maintain performance.
- Use the right drill speed and pressure for the material to avoid overheating.
- Consider buying specialty bits if you plan to drill masonry, glass, or other unique materials.
I hope my buying guide helps you find the perfect metric drill bit set for your projects. Happy drilling!
Author Profile
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I’m Karen Martin, the voice behind melaniedowney.com. With a background in home organization and years spent helping families choose what actually works in their daily routines, I’ve developed a deep appreciation for products that are practical, durable, and worth your time. I hold a degree in consumer science, but most of what I share here comes from real-life experience testing things in my own home, comparing brands, and giving honest feedback without the fluff.
These days, I live in Asheville, North Carolina, where I spend my time writing, reviewing, and enjoying the slower pace of small-town life. I started this blog in 2025 to help people cut through the noise and make confident buying decisions. Whether it's a kitchen tool, a piece of tech, or something simple for everyday use, my goal is always the same: keep it honest, useful, and grounded in how we actually live.
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