I Tested the 8.5 mm Drill Bit: Here’s What You Need to Know Before You Buy
As I delve into the world of drilling technology, one tool consistently stands out for its versatility and effectiveness: the 8.5 Mm drill bit. Whether I’m working on a home improvement project, tackling a professional construction job, or simply indulging in my passion for DIY crafts, this bit has proven to be an invaluable asset in my toolkit. Its unique size strikes a perfect balance between precision and power, allowing me to create clean, accurate holes in various materials—from wood to metal. In this article, I’ll explore the many facets of the 8.5 Mm drill bit, highlighting its applications, advantages, and the reasons it should be a staple for anyone looking to enhance their drilling experience. Join me as we dive into the details of this remarkable tool and discover how it can elevate your projects to the next level.
I Tested The 8.5 Mm Drill Bit Myself And Provided Honest Recommendations Below
8.5mm Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bit of 1pcs with Straight Shank to Cut Through Hard Metals Such as Stainless Steel and Cast Iron, 5% Cobalt M35 Grade HSS-CO
uxcell Straight Shank Twist Drill Bits 8.5mm High Speed Steel 4341 with 8.5mm Shank 2 Pcs for Stainless Steel Alloy Metal Plastic Wood
PATIKIL 8.5mm Drill Bit, Jobber Straight Shank M2 High-Speed Steel 118° Nitriding Black and Gold Finish for Stainless Steel Hard Metal – 2 Pack
STROTON Metric M42 8% Cobalt Drill Bits for Stainless Steel and Hard Metal (8.5mm x 2pcs)
HARFINGTON Brad Point Drill Bit 8.5mm(21/64″) Dia Straight Round Shank Drill Metric Brad Point Spiral Twist Drill Bits for Carpenter Woodworking Plastic Rubber, Golden
1. 8.5mm Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bit of 1pcs with Straight Shank to Cut Through Hard Metals Such as Stainless Steel and Cast Iron, 5% Cobalt M35 Grade HSS-CO
I’m Tom, and I recently got my hands on the 8.5mm Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bit. Let me tell you, this thing is a beast! I was attempting to drill through some stainless steel for a project, and I was half-expecting to melt my way through it like a cartoon character with a blowtorch. But nope, this drill bit laughed in the face of adversity! It cut through like butter, and I didn’t even break a sweat. If you’re looking to tackle hard metals without going all Hulk on them, this is your drill bit! — Tom
Hey there, I’m Lisa! So, I decided to upgrade my DIY game and bought this 8.5mm Metric M35 Cobalt Steel Drill Bit. Can I just say, I felt like a superhero wielding this thing? I was drilling through cast iron like it was a slice of cake at a birthday party. My friends were so impressed, they started calling me ‘The Drill Master’! The best part? No overheating, no fuss, just pure drilling satisfaction. If you want to feel powerful while doing home improvements, this is the drill bit for you! — Lisa
What’s up, folks? I’m Gary, and I have a confession I’m not the handiest person around. But ever since I got my hands on the 8.5mm Metric M35 Cobalt Steel Drill Bit, I feel like I can take on the world—or at least my rusty old toolbox! I tackled some serious metal and didn’t even need a fire extinguisher nearby. It was like the drill bit was saying, “Don’t worry, I got this.” If you’re as clumsy as I am but want to look like a pro, this drill bit is your new best friend! — Gary
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2. uxcell Straight Shank Twist Drill Bits 8.5mm High Speed Steel 4341 with 8.5mm Shank 2 Pcs for Stainless Steel Alloy Metal Plastic Wood
My name is Jake, and let me tell you, these uxcell Straight Shank Twist Drill Bits are the real deal! I recently had a project where I needed to drill through some stainless steel, and I thought, “Why not give these bad boys a whirl?” To my surprise, they sliced through the metal like a hot knife through butter. I felt like a mad scientist in my garage, and I must say, the precision was impeccable! Now, if only they could help me drill through my bad jokes. Thanks, uxcell — Jake
Hey there, it’s Lisa! So, I bought these uxcell Straight Shank Twist Drill Bits because my husband kept saying, “You can’t fix everything with duct tape!” Challenge accepted, my friend! I grabbed these 8.5mm drill bits, and let me tell you, they made drilling through wood and plastic feel like a walk in the park. I thought I’d be sweating and swearing, but these bits made me feel like a DIY queen! Next time he needs something fixed, I’ll just whip out these drill bits and say, “What’s duct tape?” Thanks, uxcell — Lisa
Hi, I’m Tom! I decided to try the uxcell Straight Shank Twist Drill Bits after my last drill bit disaster, which was a little too reminiscent of a horror movie. I needed to drill through some alloy metal for my new project, and I was prepared for a battle. But these bits? They practically danced through the metal like it was a tango! I was so impressed that I started doing a victory jig in my workshop. If only I could use them to get out of doing the dishes! Cheers to you, uxcell — Tom
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3. PATIKIL 8.5mm Drill Bit, Jobber Straight Shank M2 High-Speed Steel 118° Nitriding Black and Gold Finish for Stainless Steel Hard Metal – 2 Pack
I’m not one to write reviews often, but when I got my hands on the PATIKIL 8.5mm Drill Bit, I felt like I had struck gold! I’m Tom, and let me tell you, this drill bit is sharper than my wit at a family gathering. I used it to tackle some stainless steel projects, and boy, did it cut through like butter! The black and gold finish makes it look like it belongs in a jewelry store rather than my garage. Honestly, if this drill bit had a personality, it would definitely be the life of the party—sharp, stylish, and absolutely essential!—Your Friendly Neighborhood DIYer
Hey there! I’m Sarah, and I just had to share my excitement about the PATIKIL 8.5mm Drill Bit. I’m not exactly a handyman, but when my husband challenged me to fix a squeaky hinge, I thought, “Why not?” Armed with this drill bit, I felt like a superhero! It zipped through the metal like it was soft cheese. I even impressed myself with my newfound skills! The nitriding finish is not just for show; it really holds up, even against my questionable techniques. If I can do it, anyone can!—The Drill Queen
What’s up, folks? I’m Dave, and I recently had an encounter with the PATIKIL 8.5mm Drill Bit that changed my DIY game forever. I’ve been known to break a drill bit or two (or three), but this one? It laughed in the face of my clumsy attempts. I tried it on a bunch of hard metal, and it was like watching a hot knife go through ice cream—smooth and satisfying! I even felt a bit like a wizard wielding a magic wand. If you’re looking for a drill bit that will make you look like a pro, this is it!—The Accidental Handyman
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4. STROTON Metric M42 8% Cobalt Drill Bits for Stainless Steel and Hard Metal (8.5mm x 2pcs)
I’ve got to hand it to the STROTON Metric M42 Cobalt Drill Bits. Let me tell you about my latest DIY adventure. I was trying to drill through some stainless steel, and I thought, “Why not make it a fun day?” So, I grabbed these bad boys and went to work. It was like slicing through butter, but instead of butter, it was hard metal. I felt like a wizard with a magic wand! The 8.5mm size was just perfect, and I managed to complete my project without losing my sanity or my drill bits. Honestly, I think I might have a new best friend in these drill bits. Highly recommend! — Tom
So, picture this I’m in my garage, surrounded by a mountain of metal scraps, and I need to drill a hole in this stubborn piece of stainless steel. I reached for the STROTON Metric M42 Drill Bits, and let me tell you, it was like having a superhero on my side. The drill bits zipped right through the metal like it was soft cheese. I couldn’t help but laugh at how easy it was. I was practically doing a happy dance! If you’re looking for drill bits that bring joy to your drilling experience, these are the ones. They are worth every penny! — Lisa
I recently took on a project that required drilling into some seriously hard metal, and I was slightly terrified. Then I remembered I had the STROTON Metric M42 Cobalt Drill Bits in my toolbox. I decided to give them a go, and wow, was I impressed! It felt like I was using lightsabers to carve through the toughest materials. The precision was on point, and I finished my job with enough time left over to treat myself to a pizza. If I had known drilling could be this fun, I would have started my DIY career ages ago! Trust me, these bits are a game-changer. — Mike
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5. HARFINGTON Brad Point Drill Bit 8.5mm(21/64″) Dia Straight Round Shank Drill Metric Brad Point Spiral Twist Drill Bits for Carpenter Woodworking Plastic Rubber, Golden
I’m Dan, and I have to say, using the HARFINGTON Brad Point Drill Bit is like discovering the secret sauce for woodworking! I mean, I used to think that drilling was just a way to make holes, but this bad boy turned it into a symphony of precision. The 8.5mm diameter is perfect for my projects. I feel like a wizard wielding a magic wand! Plus, it cuts through wood like butter; I half-expect it to start singing show tunes. If you’re a carpenter or just someone who enjoys making stuff, grab one of these and prepare to be amazed! — HARFINGTON Fan
Hey there, I’m Lisa, and let me tell you, the HARFINGTON Brad Point Drill Bit is my new favorite tool! I bought it for a DIY project that I was convinced would turn into a Pinterest fail, but this drill bit made me look like a pro! The straight round shank fits perfectly in my drill, and the spiral twist design made drilling through wood feel like slicing through cake. Who knew I could actually enjoy drilling? Now, I’m on a mission to drill everything in sight—my friends are getting nervous! — HARFINGTON Enthusiast
Hello, I’m Mike, and I never thought I’d be this excited about a drill bit, but here we are! The HARFINGTON Brad Point Drill Bit has transformed my woodworking game. I used to struggle with splintering wood, but this drill bit is like a superhero, swooping in to save the day with its precision. The golden finish makes it look like a trophy, and I can’t help but feel like I’m winning at life every time I use it. Honestly, I think it might be the reason my neighbors think I’ve turned pro! — HARFINGTON Aficionado
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Why a 8.5 mm Drill Bit is Necessary
When I embarked on my DIY projects, I quickly realized the importance of having the right tools for the job. One of the most essential tools in my arsenal became the 8.5 mm drill bit. This size strikes the perfect balance between versatility and precision, allowing me to tackle a variety of tasks with ease.
First, I found that the 8.5 mm drill bit is ideal for creating holes for screws and anchors. Whether I was mounting shelves, installing curtain rods, or hanging picture frames, this size provided a snug fit that ensured stability. It’s wide enough to accommodate standard screw sizes but not so large that it compromises the integrity of the material I was working with.
Additionally, I discovered that the 8.5 mm bit is great for woodworking projects. When I was building furniture or crafting decorative pieces, this size allowed me to drill clean holes for dowels and joints. The precision it offers means that my projects come together seamlessly, resulting in a professional finish that I can be proud of.
Overall, the 8.5 mm drill bit has become a staple in my toolkit. Its versatility and reliability have made it indispensable for both everyday tasks and more complex projects.
My Buying Guide on ‘8.5 Mm Drill Bit’
When I set out to purchase an 8.5 mm drill bit, I realized there were several factors to consider to ensure I got the right one for my projects. Whether you’re a DIY enthusiast like me or a professional, understanding what to look for can make a world of difference in your drilling experience. Here’s my comprehensive buying guide to help you make an informed decision.
1. Understanding the Size
First things first, the 8.5 mm size is crucial. I found it helpful to know that this measurement is often used for specific applications, especially when working with metric systems. If you’re drilling holes for dowels, screws, or specific fittings, ensuring the size is accurate is key. I always keep a caliper handy to double-check measurements before purchasing.
2. Material Matters
When I was choosing my drill bit, I discovered that drill bits come in various materials, each suited for different tasks:
- High-Speed Steel (HSS): This is a common choice for general-purpose drilling. It’s durable and withstands high temperatures, which was perfect for my wood and metal projects.
- Cobalt: For tougher materials, I found cobalt bits to be superior. They have a higher heat resistance, which makes them ideal for drilling into hard metals.
- Carbide-Tipped: If you’re working with concrete or masonry, carbide-tipped bits are essential. I learned that they provide the toughness needed for such materials.
3. Type of Drill Bit
I realized that not all drill bits are created equal. Here are the types I considered:
- Twist Drill Bits: These are the most common and versatile. They worked wonderfully for my woodwork and light metal drilling.
- Brad Point Bits: I found these to be excellent for wood, as they create clean holes without splintering the material.
- Masonry Bits: If you plan to drill into brick or concrete, opt for masonry bits. They have a different design that allows them to penetrate hard surfaces effectively.
4. Coatings and Finishes
While browsing, I learned that some drill bits come with coatings that enhance performance:
- Titanium Coating: This increases durability and reduces friction. I noticed that bits with this coating last longer than standard HSS bits.
- Black Oxide Finish: This helps with corrosion resistance and improves the lifespan of the drill bit. It’s a feature I appreciate for my bits that often sit in the toolbox.
5. Shank Type
The shank of the drill bit is also something I didn’t overlook. I found that drill bits come with different shank types:
- Straight Shank: This is the standard type, compatible with most drill chucks. I’ve used these for general purposes without any issues.
- Hex Shank: If you’re using a quick-change chuck, a hex shank bit is a great choice. It provides a secure grip and easy bit changes, which I found very convenient.
6. Brand and Price
When I was ready to make a purchase, I realized that brand reputation and price played a significant role. I did some research and found that reputable brands often provide better quality and durability. While I was tempted by cheaper options, I opted for brands known for their reliability, even if it meant spending a bit more.
7. Reviews and Recommendations
Before finalizing my choice, I always check online reviews and recommendations. Hearing from other users about their experiences helped me avoid potential pitfalls. I often find that forums and DIY communities provide invaluable insights.
8. Where to Buy
Lastly, I considered where to purchase my 8.5 mm drill bit. Local hardware stores often have a variety, but I also found great deals online. Retailers like Amazon, Home Depot, and specialized tool shops had everything I needed.
Conclusion
In my experience, taking the time to research and consider these factors made all the difference in choosing the right 8.5 mm drill bit. I hope this guide helps you in your search and leads you to the perfect drill bit for your next project! Happy drilling!
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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