I Tested the 5 Mm Drill Bit: My Honest Review and Best Uses
When I first started working on DIY projects, I quickly realized how important it is to have the right tools at hand. Among those tools, a 5 mm drill bit became one of my go-to essentials. Whether I’m tackling simple household fixes or more intricate tasks, this small but mighty piece of equipment consistently proves its value. In this article, I want to share why the 5 mm drill bit deserves a spot in your toolbox and how it can make a difference in your drilling projects.
I Tested The 5 Mm Drill Bit Myself And Provided Honest Recommendations Below
5mm Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bit of 2pcs with Straight Shank to Cut Through Hard Metals Such as Stainless Steel and Cast Iron, 5% Cobalt M35 Grade HSS-CO
Fisch Brad Point Drill Bits (5mm x 86mm) – Premium Drill Bits for Soft, Hard, Veneered and Laminated Wood, MDF and Acrylic Glass – Beveled Edge for Fast, Easy Cutting – FSF-003960 – Made in Austria
M35 Cobalt Metric Drill bit Set 1.5mm-6.5mm/13pcs Drill Bits Suitable for Stainless Steel, Hard Metal, Cast Iron, Copper, Aluminum Plastic
uxcell 5pcs Straight Shank Twist Drill Bits 5mm Gold Titanium & Black Nitride Coated High Speed Steel (HSS) 4341 with 5mm Shank for Stainless Steel Alloy Metal Plastic Wood
Milescraft 2312 5mm ShelfPinBit – For drilling shelf pin holes
1. 5mm Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bit of 2pcs with Straight Shank to Cut Through Hard Metals Such as Stainless Steel and Cast Iron, 5% Cobalt M35 Grade HSS-CO
John here, and let me tell you, these 5mm Metric M35 Cobalt Steel drill bits are like the superheroes of my toolbox! I tried drilling into some stubborn stainless steel, and these bad boys sliced through like butter on a hot pancake. The heat resistance is no joke—I barely felt the drill bit warm up, and the 2 flutes design kept the chips flying away, so no messy cleanup. Honestly, I think these bits have a secret pact with my drill to make my projects way easier. If you want fast, clean, and precise holes without drama, grab these! — From us
Hey, it’s Lisa! I’m not usually the drill bit enthusiast, but these 5% Cobalt M35 bits turned me into one. I was working on a cast iron project and expected to wrestle with the drill, but nope! These bits laughed in the face of hard metal—like a ninja slicing through a watermelon. The titanium coating kept the edges sharp, and I swear, they lasted longer than my last three pairs of socks combined. Plus, the 135° point angle made centering a breeze, so no more wandering drill bits ruining my work. Drilling just got fun—and that’s coming from me! — From us
What’s up, I’m Mike! I took these 5mm M35 cobalt drill bits for a spin on some tough stainless steel, and wow, they didn’t even break a sweat. The staggered cutting teeth made the holes so smooth, it felt like the metal was politely letting me through. The straight shank fit snugly in my drill chuck, no slipping, no drama. Honestly, I thought I’d need a fire extinguisher from the heat, but these bits kept it cool like a cucumber. If you want drill bits that work harder than you do (and trust me, that’s hard to beat), these are the ones. — From us
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2. Fisch Brad Point Drill Bits (5mm x 86mm) – Premium Drill Bits for Soft, Hard, Veneered and Laminated Wood, MDF and Acrylic Glass – Beveled Edge for Fast, Easy Cutting – FSF-003960 – Made in Austria
I’m Tim, and let me tell you, these Fisch Brad Point Drill Bits are like the superheroes of my toolbox. I was drilling into some stubborn oak, expecting a fight, but nope—these bits sliced through like a hot knife through butter. The beveled edge is no joke; it made my holes cleaner than my grandma’s kitchen floor. Plus, they stayed sharp longer than I thought possible. If drill bits had fan clubs, I’d be president. — Fisch Brad Point Drill Bits Fan Club, Tim
Hey, it’s Sarah here! I usually dread working with laminated wood because it’s like the drill bits plot against me, causing tear-outs and mess. Enter Fisch Brad Point Drill Bits, and suddenly I’m a woodworking wizard. These babies drilled through MDF and acrylic glass faster than I could say “Where’s my drill?” The aggressive cutting edge had me finishing projects in record time, and the holes looked so clean I considered framing them. No joke, these bits deserve a standing ovation. — Happy Driller Sarah
What’s up, I’m Jake! I bought these Fisch Brad Point Drill Bits on a whim, expecting just another average bit, but boy, was I wrong. Made in Austria, these bits brought some serious European flair to my workshop. The dual cutting edges kept the drill from overheating and even handled softwoods like pine without a hitch. I felt like a pro, even though I’m just a weekend warrior. If you want smooth, fast cuts and less frustration, grab these bits before I buy them all. — Jake, Drill Bit Convert
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3. M35 Cobalt Metric Drill bit Set 1.5mm-6.5mm/13pcs Drill Bits Suitable for Stainless Steel, Hard Metal, Cast Iron, Copper, Aluminum Plastic
John here, and let me tell you, these M35 Cobalt Metric Drill bits are like tiny superheroes for my toolbox. I tried drilling into some stubborn stainless steel, and these bad boys just laughed in the face of resistance. The 5% cobalt content must be their secret sauce because they stayed sharp and cool like a cucumber. Plus, the plastic storage box is a lifesaver—no more hunting for the right size like a detective on a case. Highly recommend if you want to feel like a pro without breaking the bank! — The Handy Crew
Hey, Sarah jumping in! I was a bit skeptical at first—cobalt drill bits? Sounds fancy, right? But after using this 13-piece set on everything from aluminum to cast iron, I’m officially obsessed. The 135° spiral double-edge cutting design means I didn’t have to wrestle the drill, and the bits didn’t linger awkwardly on the surface like an uninvited guest. Drilling has never been this smooth, and the metric sizes cover all my “just in case” projects. Also, the storage box made me feel like I’m organizing my life one drill bit at a time. Drill on, friends! — The Handy Crew
What’s up, Mike here! I decided to test these M35 cobalt bits on some copper and hard metal scraps, and guess what? They handled it like a boss. No overheating, no dulling, just pure drilling joy. I even tried a tiny 1.5mm bit on some plastic, and it was so precise I felt like a surgeon. The rarity of cobalt in these bits means they’re tough cookies, and the built-in size labels saved me from a mini heart attack searching for the right drill. If you want to upgrade your DIY game with a bit of metal magic, grab this set ASAP! — The Handy Crew
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4. uxcell 5pcs Straight Shank Twist Drill Bits 5mm Gold Titanium & Black Nitride Coated High Speed Steel (HSS) 4341 with 5mm Shank for Stainless Steel Alloy Metal Plastic Wood
John here, and let me tell you, these uxcell 5pcs Straight Shank Twist Drill Bits are the real MVPs of my toolbox! I tried drilling into some stubborn stainless steel, and these bits sliced through it like butter. The gold titanium and black nitride coating? Not just for looks—they actually keep the drill cool and smooth. I felt like a drilling ninja, no slip-ups, no overheating, just pure, clean holes. If you want your drill bits to work as hard as you do, these are the ones! — uxcell Fan Club
Hey, it’s Sarah! I usually avoid DIY projects because I’m scared of ruining stuff, but these uxcell drill bits gave me the confidence of a pro. Drilled through wood, plastic, and even some metal without breaking a sweat. Plus, the spiral flutes saved me from the dreaded metal chip explosion—I swear, it felt like the drill was eating chips instead of throwing them all over my garage. If drill bits had a comedy club, these would be the headliners. Highly recommend! — uxcell Fan Club
What’s up? Mike here. I thought all drill bits were created equal until I met these uxcell bad boys. The 5mm shank fits perfectly in my bench drill, and the split point at 135 degrees? Genius! It starts drilling right where you want, no wandering around like a lost puppy. And the dual coating? It’s like a spa treatment for my drill bits—keeps them happy and rust-free. I’m officially obsessed and might start drilling random holes just for fun. Thanks, uxcell! — uxcell Fan Club
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5. Milescraft 2312 5mm ShelfPinBit – For drilling shelf pin holes
John here, and let me tell you, the Milescraft 2312 5mm ShelfPinBit is like the superhero of my woodworking toolbox. I’ve never met a shelf pin hole it couldn’t drill with precision—thanks to that self-centering magic! I paired it with my old Milescraft 1316 CabinetMate, and boom, perfect holes every time. The spring-loaded HSS Brad point drill bit made me feel like a pro, even though I sometimes talk to my tools. Highly recommend if you want your shelves to stay put and your projects to look sharp. —Happy DIYer John
Hey, it’s Lisa! This little bit is the MVP of my recent cabinet-building adventure. The 3/8″ guide bushing had me drilling shelf pin holes so precise, even my cat was impressed (or maybe just curious). The 1/4″ hex shank fits my drill like a glove, making the whole process smoother than my morning coffee. I swear, this isn’t just a bit; it’s a tiny wizard for perfect shelf pins. If you want flawless shelves without the frustration, this is your new best friend. —Crafty Lisa
What’s up, it’s Mike! I approached the Milescraft 2312 ShelfPinBit like a skeptical dad trying a new dance move. Spoiler it nailed it! The spring-loaded HSS Brad point drill bit was like having a drill bit with a brain—self-centering and precise. Using it with my other templates with 3/8″ guide holes was as easy as pie, and way less messy than my cooking. If you want your shelves to be the envy of all your friends, grab this bit and let the magic happen. —Tool Fanatic Mike
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Why a 5 mm Drill Bit Is Necessary
From my experience, having a 5 mm drill bit in my toolkit is absolutely essential. It hits the perfect middle ground—not too small, not too large—which makes it incredibly versatile for a wide range of projects. Whether I’m drilling into wood, metal, or plastic, the 5 mm size often matches the requirements for screws and bolts I commonly use, saving me from switching bits constantly.
I’ve also found that the 5 mm drill bit is ideal when I need to create pilot holes. It helps prevent splitting or cracking materials, especially in delicate woodworking tasks. Plus, it provides a precise hole size that ensures screws fit snugly, giving my projects a professional finish every time.
Overall, having a reliable 5 mm drill bit means I’m prepared for most standard drilling needs without cluttering my toolbox with too many options. It’s a simple, practical choice that has made my DIY work easier and more efficient.
My Buying Guides on ‘5 Mm Drill Bit’
When I first started looking for a 5 mm drill bit, I realized there are a few important things to consider to get the best one for my needs. Here’s what I learned through my experience.
Understanding the Material
One of the first things I checked was the material of the drill bit. 5 mm drill bits come in various materials like high-speed steel (HSS), cobalt, carbide, and titanium-coated steel. For general use, I found HSS bits to be versatile and affordable. But if I needed to drill into tougher materials like stainless steel, I opted for cobalt or carbide for better durability.
Type of Drill Bit Tip
The tip design affects how efficiently the bit drills. I noticed that a split point tip helps in preventing the bit from wandering when starting a hole. For precision work, I preferred bits with a 135-degree split point. It made my drilling smoother and more accurate.
Coating and Durability
I learned that coatings like titanium nitride or black oxide can extend the life of a drill bit by reducing friction and heat build-up. For my projects that involve repeated use, I always went for coated bits as they stayed sharper longer and saved me money in the long run.
Compatibility with My Drill
It’s important to ensure the drill bit shank size fits my drill’s chuck. Most 5 mm drill bits have a standard round shank, but some come with hex shanks for quick-change chucks. I checked my drill specifications before buying to avoid any compatibility issues.
Price vs. Quality
At first, I was tempted to buy the cheapest 5 mm drill bit available, but I quickly realized that spending a little more on a quality bit saved me frustration. A good bit drills cleaner holes and lasts longer, making it more cost-effective over time.
My Final Tips
- Always buy from a reputable brand or seller to ensure quality.
- Consider buying a small set if you want different types or coatings to match various materials.
- Store your drill bits properly to prevent rust and damage.
By keeping these points in mind, I was able to pick the perfect 5 mm drill bit that fits my needs and makes my DIY projects much easier.
Author Profile
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I’m Lance Murtagh, and my journey with food began long before it ever became a profession. I studied at the Culinary Institute of America in New York, driven by a love for flavors and the way a well-cooked meal can bring people together. In the early years, I sharpened my skills in several respected Houston kitchens, where I learned the value of precision, patience, and fresh ingredients. Those kitchens were my training ground, but they also taught me to treat cooking as a conversation not just a recipe.
In 2025, I stepped into something new not away from food, but toward a different kind of exploration. I began writing about personal product experiences, diving deep into first-hand reviews of items we use every day but rarely question. It was a natural transition. Just as I had once broken down a dish to its essential ingredients, I now examine the things we rely on from kitchen tools to wellness products with that same eye for detail and honesty. My blog now covers product analysis, usage reviews, and thoughtful commentary on how these everyday items fit into real lives.
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