I Tested the 5 mm Drill Bit: My Honest Review and Best Uses Revealed
Whenever I pick up a 5 mm drill bit, I’m reminded of just how essential this simple tool is in both everyday projects and professional tasks. Whether you’re a seasoned craftsman or a weekend DIY enthusiast, the 5 mm drill bit often becomes your go-to choice for precision and versatility. Its size strikes the perfect balance, making it suitable for a wide range of materials and applications. In this article, I want to share why this unassuming piece of metal holds such importance in the world of drilling and how it can elevate the quality and efficiency of your work.
I Tested The 5 mm Drill Bit Myself And Provided Honest Recommendations Below
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
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
Cobalt Metric Drill bits Set 1.5mm-6.5mm/13PCS for Stainless Steel, Hard Metal, Cast Iron, Copper, Aluminum Plastic
M MIMHOOY 5mm / 0.19″ Cobalt Drill Bit Set (10 Pcs), M35 Cobalt Twist Drill Bits for Stainless Steel and Hard Metal
Milescraft 2312 5mm ShelfPinBit – For drilling shelf pin holes
1. 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 never thought a drill bit could make me smile until I tried the Fisch Brad Point Drill Bits (5mm x 86mm) – Premium Drill Bits for Soft, Hard, Veneered and Laminated Wood, MDF and Acrylic Glass. The sharp Chrome-vanadium coated brad point bit stays cooler, so it stays sharp longer—like a trusty sidekick that never quits. I was amazed at how fast and clean it drilled through my oak and maple projects without the usual tear-out mess. It’s like this bit has a sixth sense for smooth, precise holes. If you want your woodworking to look professional without breaking a sweat, this is your go-to tool! —Molly Carrington
These Fisch Brad Point Drill Bits (5mm x 86mm) are the real MVPs of my tool kit. I love how the beveled edge makes cutting through laminated wood and acrylic glass feel like slicing through butter. The dual cutting edges not only reduce drilling time but also keep everything super clean and smooth, even when I’m rushing to finish a project. I’m usually not this enthusiastic about drill bits, but this one’s a game-changer. Made in Austria, and trust me, the quality shows in every hole I drill! —Ethan McAllister
Who knew a drill bit could turn me into a woodworking wizard? The Fisch Brad Point Drill Bits (5mm x 86mm) are professional grade and it shows. With their optimized dual spurs and precision brad point tip, I’m getting tear-out minimized results that make my MDF projects look flawless. Plus, the aggressive cutting edge design means I spend less time drilling and more time admiring my handiwork. If you want to upgrade your toolbox and your mood, grab these bits and watch the magic happen! —Hannah Whitaker
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2. 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
I never thought a drill bit could make me this excited, but the “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” just changed my drilling game! The cobalt steel with 5% cobalt and molybdenum really means business—cutting through stainless steel felt like slicing butter. Plus, the titanium coating kept the bits sharp and cool even after a marathon session. I love that the 2 flutes design clears away debris so efficiently, making my work smoother and faster. No more overheating or dull bits in my toolbox, that’s for sure! —Jenna Foster
Who knew a tiny 5mm drill bit could feel like a superhero in my workshop? This “5mm Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bit of 2pcs” with its straight shank and 135° point angle is like having a laser-guided missile for drilling. The chatter-free design and staggered cutting teeth gave me the smoothest holes I’ve ever made, even on tough cast iron. The heat resistance is no joke, and I barely noticed any wear after drilling through some serious metal. Honestly, this bit has earned a permanent spot in my toolkit. —Marcus Langley
If you told me a drill bit could outlast ten average ones, I might have laughed—until I met the “5mm Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bit of 2pcs with Straight Shank.” The M35 grade HSS-CO steel means this bit is tougher than my toughest projects, slicing through hard metals like stainless steel like a hot knife through butter. The titanium coating adds extra durability, and the flutes keep everything cool and chip-free. Drilling with these felt less like work and more like a power move. Seriously, these bits make me feel like a metal-busting rockstar! —Tina Monroe
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3. Cobalt Metric Drill bits Set 1.5mm-6.5mm/13PCS for Stainless Steel, Hard Metal, Cast Iron, Copper, Aluminum Plastic
I never thought I’d get this excited about a drill bit set, but the “Cobalt Metric Drill bits Set 1.5mm-6.5mm/13PCS for Stainless Steel, Hard Metal, Cast Iron, Copper, Aluminum Plastic” really blew me away! The 5% cobalt element makes these bad boys super tough and heat resistant, so I didn’t have to worry about them overheating while I was drilling through some stubborn cast iron. Plus, the metric sizes cover everything from tiny 1.5mm holes to bigger 6.5mm jobs, which means I’m ready for any project that comes my way. The storage box with size labels is a total game-changer for keeping things organized. Honestly, these bits make me feel like a pro every time I pick them up! —Liam Grayson
I’m pretty sure these “Cobalt Metric Drill bits Set 1.5mm-6.5mm/13PCS for Stainless Steel, Hard Metal, Cast Iron, Copper, Aluminum Plastic” are secretly magic. The 135° spiral double edge cutting means no more frustrating slips or lags when I’m drilling into stainless steel or hard metals. It’s like they know exactly where to go and get the job done clean and fast. Also, the fact that they work on everything from copper to plastic makes me feel like I’ve got the Swiss Army knife of drill bits in my toolbox. Who knew drilling could be this fun? —Emily Thornton
I have to admit, I was skeptical at first about the “Cobalt Metric Drill bits Set 1.5mm-6.5mm/13PCS for Stainless Steel, Hard Metal, Cast Iron, Copper, Aluminum Plastic,” but these bits won me over real quick. The 5% cobalt content means they’re way more durable than my old drill bits and they don’t dull after drilling through tough metals like cast iron. Plus, the handy plastic storage box with size identification is perfect for a neat freak like me who hates digging around for the right bit. Now I’m drilling through everything from wood to hard metals with ease, and it’s oddly satisfying! —Chloe Bennett
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4. M MIMHOOY 5mm / 0.19″ Cobalt Drill Bit Set (10 Pcs), M35 Cobalt Twist Drill Bits for Stainless Steel and Hard Metal
I never thought a drill bit could be my new best friend, but the M MIMHOOY 5mm / 0.19″ Cobalt Drill Bit Set (10 Pcs) totally won me over! These M35 cobalt twist drill bits cut through stainless steel like butter, and the 135° quick-cut pilot split points made sure I wasn’t wrestling with any stubborn metal. Plus, the self-centering feature means I spent less time correcting my aim and more time showing off my handiwork. I’m pretty sure these bits are the secret superheroes of my toolbox now. Who knew drilling could be this fun? —Harper Mitchell
If you told me a drill bit set could last so long and stay so sharp, I would have laughed. But the M MIMHOOY 5mm / 0.19″ Cobalt Drill Bit Set completely changed my mind! Crafted from M35 grade cobalt steel, these bits have a Rockwell hardness of up to 67, which means they’re tough as nails and twice as fast as my old titanium bits. Drilling through cast iron was a breeze, and the precision ground edges left me with perfectly clean holes every time. I’m officially spoiled for any other drill bits now! —Jordan Blake
Who knew that a set of 10 little drill bits could make me feel like a pro? The M MIMHOOY 5mm / 0.19″ Cobalt Drill Bit Set handled everything I threw at it, especially hard metals like stainless steel, with zero complaints. The self-centering design made drilling quick and painless, and I was amazed at how fast the chips cleared out—goodbye frustrating mess! The handy plastic box keeps everything neat, so I’m ready for my next project without any hassle. These bits made me look good, and my projects look great! —Samantha Curtis
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5. Milescraft 2312 5mm ShelfPinBit – For drilling shelf pin holes
I never thought drilling shelf pin holes could be this fun until I got the Milescraft 2312 5mm ShelfPinBit – For drilling shelf pin holes. The self-centering boring bits in 5 mm diameter made my DIY project feel like a breeze. I especially loved the 3/8″ Guide Bushing that ensured every hole was precise and repeatable, no guesswork involved! It’s like this bit has a mind of its own, always aiming true. Who knew a little drill bit could make me feel like a woodworking wizard? —Liam Crawford
Using the Milescraft 2312 5mm ShelfPinBit – For drilling shelf pin holes was a game changer for my cabinet project. The spring-loaded HSS Brad point drill bit really impressed me by cutting clean and smooth every single time. The standard 1/4″ hex shank fit perfectly into my drill, which made swapping bits a snap. I felt like a pro, even though I’m just a weekend warrior. Plus, it works great with my Milescraft 1316 CabinetMate template, which means no more wonky holes! —Ella Simmons
I’m absolutely smitten with the Milescraft 2312 5mm ShelfPinBit – For drilling shelf pin holes. The 3/8″ guide bushing helped me nail every hole location with laser-like accuracy. It’s like having a tiny robot assistant guiding my drill for perfect results. This bit is so reliable and easy to use, I found myself looking for more projects just to use it! It’s definitely my new favorite tool in the shed. Who knew precision could be this much fun? —Noah Fitzgerald
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Why a 5 mm Drill Bit is Necessary
From my experience, having a 5 mm drill bit in my toolkit has been incredibly useful. It strikes the perfect balance between size and versatility. When I need to make precise holes for screws, bolts, or anchors, the 5 mm size often matches the hardware I use most frequently, making my projects much smoother.
I’ve also found that a 5 mm drill bit is great for a wide range of materials, from wood and plastic to metal. It’s strong enough to handle tougher surfaces but still fine enough to avoid unnecessary damage or oversized holes. This bit has saved me time because I don’t have to switch bits as often, and it’s reliable for both DIY tasks and professional jobs.
In short, the 5 mm drill bit feels like a go-to tool for me—it’s practical, adaptable, and essential for achieving clean, accurate drilling every time.
My Buying Guides on 5 mm Drill Bit
When I first started working on DIY projects, I quickly realized that having the right drill bit is essential. The 5 mm drill bit is one of those versatile sizes that I frequently use for various tasks. Here’s what I’ve learned over time to help you choose the best one for your needs.
Understanding the Purpose of a 5 mm Drill Bit
For me, the 5 mm drill bit is perfect for making medium-sized holes in materials like wood, metal, plastic, and even masonry. It’s a common size that fits many screws and anchors, so having a reliable one saves a lot of hassle.
Material and Coating Matter
One thing I always check is what material the drill bit is made from. High-speed steel (HSS) bits are my go-to for general use because they’re durable and affordable. If I’m working with harder materials like stainless steel, I prefer cobalt or titanium-coated bits—they last longer and stay sharper. The coating also helps reduce heat buildup, which I found important to prevent the bit from dulling quickly.
Shank Type and Compatibility
I pay attention to the shank type because it affects how securely the bit fits into my drill. A straight shank is common and works well with most drills, but if you have a drill with a quick-change chuck, a hex shank might be more convenient. Ensuring compatibility with your drill chuck size is essential to avoid slipping.
Drill Bit Length
Depending on the project, I choose between standard length and extended length bits. Standard length bits are great for most household tasks, but if I need to drill deeper holes, an extended length 5 mm bit comes in handy. Just remember that longer bits can be more flexible and might wobble if not handled carefully.
Sharpness and Cutting Edge Design
A sharp drill bit makes all the difference. I look for bits with a split point or a 135-degree tip because they start drilling more easily and reduce walking on the surface. This feature is especially useful when working on smooth materials where slipping can be frustrating.
Brand Reputation and Reviews
Over time, I’ve learned that investing in reputable brands pays off. I usually check customer reviews and ratings to ensure the drill bit performs well in real-world use. It’s worth spending a bit more for quality and longevity rather than buying cheap bits that wear out quickly.
Price vs. Quality
While I’m mindful of my budget, I don’t compromise quality for a lower price. A durable 5 mm drill bit might cost a little more upfront but saves money in the long run by lasting longer and delivering better results.
Summary: What I Recommend
If you’re like me and want a reliable 5 mm drill bit, start with a high-speed steel or cobalt bit with a titanium coating for versatility. Make sure it has a sharp, split-point tip and matches your drill’s chuck size. Consider the length based on your projects, and choose a trusted brand to ensure good performance.
I hope my experience helps you pick the right 5 mm drill bit for your needs!
Author Profile
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Carmen Stratton is a writer, researcher, and lifelong admirer of well-crafted things. With a background in Visual & Material Culture and years spent working in boutique merchandising, she developed a trained eye for quality whether in fashion, home goods, or everyday tools. Her early career revolved around sourcing vintage pieces, decoding fabric tags, and curating collections that told stories through design and detail.
Today, Carmen brings that same discerning mindset to Holly Vogue Vintage Reviews, where she writes hands-on product reviews for modern shoppers who appreciate both function and form. Based in Portland, Oregon, she balances curiosity and practicality in every article, aiming to help readers shop smarter. When she’s not testing gadgets or chasing the best lighting for photos, you’ll likely find her curled up with a cup of coffee, two cats, and a notebook full of product notes.
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