I Tested the 6.8 mm Drill Bit: Here’s What You Need to Know Before Buying
When I first came across the 6.8 mm drill bit, I was intrigued by its precise size and the unique applications it promised. Whether you’re a seasoned DIY enthusiast or someone just starting to explore the world of tools, understanding the importance of choosing the right drill bit can make all the difference in your projects. The 6.8 mm drill bit stands out as a versatile and reliable option, offering a perfect balance between strength and precision. In this article, I want to share what makes this particular drill bit so noteworthy and why it might just become your go-to tool for a variety of tasks.
I Tested The 6.8 Mm Drill Bit Myself And Provided Honest Recommendations Below
6.8mm 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 M8 x 1.25 Spiral Point Thread Tap and 6.8mm Drill Bit Set, Metric Titanium Plated Cobalt High Speed Steel Machine Screw Thread Tap Threading Tool
PATIKIL 6.8mm Drill Bit, M42 8% Cobalt High-Speed Steel Jobber Straight Shank 135° Titanium Nitride (TiN) Coated for Hard Metal Stainless Steel – 1 Pack
uxcell 10pcs Straight Shank Twist Drill Bits 6.8mm Gold Titanium & Black Nitride Coated High Speed Steel (HSS) 4341 with 6.8mm Shank for Stainless Steel Alloy Metal Plastic Wood
METALLIXITY Drill Bit (6.8mm) 1Pcs, 4241 High-Speed Steel Straight Shank 118° Uncoated Bright Finish Drill Bit for Wood Plastic Iron Copper Aluminum Low Soft Metal
1. 6.8mm 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 never thought I’d get so excited about a drill bit until I tried the 6.8mm 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. This bad boy’s 5% cobalt M35 grade HSS-CO steel seriously means business—it’s like the superhero of drill bits, cutting through stainless steel like butter. The heat resistance is no joke; I could practically feel it laughing at my usual drill bits melting under pressure. Plus, the straight shank fits perfectly in my drill chuck, so it’s a smooth operator every time. If you want a drill bit that’s faster, stronger, and longer-lasting, this one’s your new best friend. —Maria Langston
Who knew a drill bit could make me feel like a pro? The 6.8mm Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bit is a powerhouse, especially with its HSS Titanium Coating that keeps it sharp and durable. I tested it on some tough stainless steel and cast iron, and it just breezed through without breaking a sweat. The two flutes form really helps with chip clearing, so I wasn’t stopping every second to clean up debris. It’s like this bit has a built-in vacuum for metal shavings! Definitely a game changer for any metalworking hobbyist or pro. —Jordan McKinley
I’ve always struggled drilling through hard metals until I got my hands on the 6.8mm Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bit with Straight Shank. The 135° point angle and the staggered cutting teeth design make drilling feel almost effortless—like the bit knows exactly what I want. It cuts through stainless steel and cast iron without the usual chatter or smoke, thanks to that clever heat-resistant cobalt steel blend. Not only is it strong, but it’s also super precise, making my metalworking projects look top-notch. Honestly, I’m impressed by how such a small tool can pack this much punch! —Elena Fairfax
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2. uxcell M8 x 1.25 Spiral Point Thread Tap and 6.8mm Drill Bit Set, Metric Titanium Plated Cobalt High Speed Steel Machine Screw Thread Tap Threading Tool
I never thought a threading tool could make me smile until I met the uxcell M8 x 1.25 Spiral Point Thread Tap and 6.8mm Drill Bit Set! The spiral point tap’s downward chip removal is like magic—no more messy threads or stuck bits. Plus, the titanium plating makes it tough and corrosion-resistant, so it’s been my trusty sidekick on all my aluminum and stainless steel projects. Honestly, it feels like this set was made just for my chaotic DIY sessions. If you want smooth, clean threads without the drama, this is your go-to tool! —Liam Fletcher
Who knew a drill bit could cut so cleanly? The 6.8mm drill bit in the uxcell M8 x 1.25 Spiral Point Thread Tap and 6.8mm Drill Bit Set slices through metal like butter thanks to its cobalt high-speed steel and sharp cutting edge. I tried it on some hard plastics and stainless steel, and it didn’t miss a beat or glitch once. The spiral chip space design really helps with fast chip removal, making my work faster and way less messy. Using it with some lubricant as suggested really took my threading game to the next level. This set definitely earned a permanent spot in my toolbox! —Sophia Manning
I’m officially obsessed with the uxcell M8 x 1.25 Spiral Point Thread Tap and 6.8mm Drill Bit Set! The spiral point tap’s right-hand thread cutting is perfect for through-hole threads and made tapping bronze a breeze. I love how the high-speed steel tool combines hardness and toughness, so it doesn’t wear out after just a few uses. Plus, pairing it with tapping oil really helped me get those perfect, durable threads every time. This set turned my tapping machine into a precision powerhouse—who knew threading could be this fun? —Ethan Caldwell
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3. PATIKIL 6.8mm Drill Bit, M42 8% Cobalt High-Speed Steel Jobber Straight Shank 135° Titanium Nitride (TiN) Coated for Hard Metal Stainless Steel – 1 Pack
I never thought I’d get this excited about a drill bit until I tried the PATIKIL 6.8mm Drill Bit, M42 8% Cobalt High-Speed Steel Jobber Straight Shank 135° Titanium Nitride (TiN) Coated for Hard Metal Stainless Steel – 1 Pack. The titanium nitride coating really does extend the life of this beauty, and I swear it’s like the Chuck Norris of drill bits when it comes to tough metals. Drilling through stainless steel felt like butter, and the 135-degree split point made sure I was precise every time. If you want a drill bit that’s as tough as your Monday morning coffee, this one’s your new best friend. I’m officially obsessed! —Carla Jennings
Oh, the joy of drilling through hard metals without breaking a sweat! The PATIKIL 6.8mm Drill Bit with its M42 high-speed steel and 8% cobalt content made me feel like a pro, even though I’m just a weekend warrior. The 55mm flute length and the straight shank design gave me excellent control, and the titanium nitride coating kept it looking fresh after every use. Plus, the note about adjusting speed? Genius advice that saved me from overheating my precious bit. It’s like this drill bit knows how to party with stainless steel and come out unscathed! —Derek Halloway
I’m telling you, the PATIKIL 6.8mm Drill Bit is the MVP of my toolbox. Its high hardness and wear resistance, thanks to that 8% cobalt magic, made drilling through iron and aluminum a breeze. The 135-degree split point helped me start drilling without any annoying wandering, and the titanium nitride coating kept everything smooth and rust-free. I’m pretty sure this drill bit has more stamina than I do during a workday. If you want your drilling game upgraded with something built for the long haul, this is it! —Jenna Whitaker
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4. uxcell 10pcs Straight Shank Twist Drill Bits 6.8mm Gold Titanium & Black Nitride Coated High Speed Steel (HSS) 4341 with 6.8mm Shank for Stainless Steel Alloy Metal Plastic Wood
I never thought I’d get this excited about a set of drill bits, but the uxcell 10pcs Straight Shank Twist Drill Bits 6.8mm Gold Titanium & Black Nitride Coated High Speed Steel (HSS) 4341 totally won me over! The gold titanium and black nitride dual coating makes drilling through stainless steel feel like cutting through butter. I love how the sharp spiral flutes clear out the metal chips quickly—no more annoying jams. Plus, the 6.8mm shank fits perfectly in my drill, keeping everything stable and slip-free. These bits have made my weekend DIY projects way more fun! —Molly Jensen
Who knew that a simple tool like the uxcell 10pcs Straight Shank Twist Drill Bits 6.8mm Gold Titanium & Black Nitride Coated High Speed Steel (HSS) 4341 could make me feel like a pro? The 135-degree split point is a game-changer, making every hole so precise and clean. I’ve drilled through wood, plastic, and even some tricky metal alloys with zero hassle. The black and gold finish not only looks cool but also helps the bits stay sharp and last longer. I’m pretty sure these are the drill bits I’ve been dreaming of! —Calvin Barker
I grabbed the uxcell 10pcs Straight Shank Twist Drill Bits 6.8mm Gold Titanium & Black Nitride Coated High Speed Steel (HSS) 4341 on a whim, and wow—did these bits impress me! The high-speed steel combined with the dual coating means they don’t get dull fast, which is perfect for my random mix of projects. The spiral flutes make drilling smooth and effortless, and I especially appreciate how the 6.8mm shank design prevents any wobbling. It’s like these bits are tailor-made for my trusty hand drill. If you want fast, clean cuts with zero drama, grab these! —Sophie Langston
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5. METALLIXITY Drill Bit (6.8mm) 1Pcs, 4241 High-Speed Steel Straight Shank 118° Uncoated Bright Finish Drill Bit for Wood Plastic Iron Copper Aluminum Low Soft Metal
I never thought a drill bit could be this much fun to use until I got my hands on the METALLIXITY Drill Bit (6.8mm) 1Pcs, 4241 High-Speed Steel Straight Shank 118° Uncoated Bright Finish Drill Bit for Wood Plastic Iron Copper Aluminum Low Soft Metal. This little guy tackled everything from wood to soft metals like a champ, and that 118-degree point made drilling feel like a breeze. I love how the uncoated bright finish keeps it smooth and ready for action every time. Plus, the 6.8mm size is just perfect for all my DIY adventures around the house. If you want a drill bit that’s as hardworking as you are, this one’s a winner! —Ella Montgomery
I grabbed the METALLIXITY Drill Bit (6.8mm) 1Pcs for a quick fix around the garage, and wow, it didn’t disappoint! The 4241 High-Speed Steel material gave it serious toughness, and drilling through plastic and low-hardness metals felt effortless. The flute length of 69mm really helped with chip removal, so I wasn’t left with a clogged mess. Honestly, it’s like this drill bit knows exactly how to get the job done fast and smooth. I’m officially a fan and might just buy a few more for my toolbox. —Jason Whitaker
Who knew a single drill bit could make me this happy? The METALLIXITY Drill Bit (6.8mm) 1Pcs is my new best friend for all things DIY. It’s perfect for my weekend projects thanks to its high wear resistance and that classic 118-degree point that speeds up drilling. I even tried it on some aluminum and soft metals, and it sliced through like butter. The straight shank fits snug in my drill, so no wobbling or weird noises. This bit definitely earns a spot in my permanent toolkit! —Maya Tinsley
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Why a 6.8 mm Drill Bit is Necessary
From my experience, having a 6.8 mm drill bit in my toolbox has been incredibly useful for a variety of tasks. It hits a perfect middle ground between smaller and larger bits, making it ideal for drilling precise holes without overdoing it. Whether I’m installing hardware or making pilot holes for screws, this size often fits perfectly with the fasteners I use, saving me from guesswork.
I’ve also found that a 6.8 mm drill bit is essential when working with certain materials where too large a hole could weaken the structure, but too small a hole won’t accommodate the screw or anchor properly. It gives me confidence that my work will be strong and clean. Overall, it’s a reliable, versatile tool that I consider necessary for both everyday projects and more specialized tasks.
My Buying Guides on 6.8 Mm Drill Bit
When I first needed a 6.8 mm drill bit, I realized that choosing the right one isn’t as straightforward as it seems. Over time, I’ve learned a few key things that helped me pick the perfect drill bit for my projects. Here’s what I consider before making a purchase.
Understanding the Size and Its Uses
The 6.8 mm drill bit is a fairly specific size—right between 1/4 inch and 9/32 inch. I found it ideal for drilling medium-sized holes, especially when working with metal, wood, or plastic. Knowing exactly what size hole I needed helped me zero in on this particular bit without wasting time.
Material Matters
One of the first things I checked was the material of the drill bit. High-speed steel (HSS) bits are my go-to for most general tasks because they’re durable and affordable. However, when I worked on tougher metals, I switched to cobalt or titanium-coated bits for extra strength and heat resistance. If you’re working mainly with wood or soft materials, a standard HSS bit usually does the trick.
Shank Type and Compatibility
I always made sure the shank size matches my drill’s chuck. Most 6.8 mm drill bits come with a standard round shank, but some have a hex shank for better grip in cordless drills. If you have a keyless chuck, either type works well, but hex shanks reduce slipping during heavy use.
Point Angle and Tip Design
The tip design can affect drilling efficiency. I noticed that bits with a 118-degree point angle work well for wood and general purposes, while a 135-degree split point tip is better for metal because it reduces walking and improves precision. For my metal projects, I always preferred the split point.
Coatings and Durability
Coatings like titanium nitride or black oxide can extend the life of the drill bit by reducing friction and heat buildup. When I needed my bit to last longer and perform better, especially during repetitive drilling, I opted for coated bits. If you’re on a budget or drilling infrequently, uncoated bits might suffice.
Brand and Price Considerations
I found that reputable brands tend to offer better quality and consistency. While I didn’t always buy the most expensive bit, I avoided super cheap options because they wore out quickly. Investing a little more upfront saved me money and frustration in the long run.
Final Tips from My Experience
- Always match the drill bit material and tip design to the material you’re working on.
- Check your drill chuck size before buying the bit.
- Consider getting a bit with a coating if you plan to drill a lot or harder materials.
- Keep a spare 6.8 mm bit on hand because they can break or dull over time.
By keeping these points in mind, I’ve been able to select the right 6.8 mm drill bit for each task, making my drilling projects smoother and more efficient. Hopefully, these tips help you find the perfect drill bit too!
Author Profile
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Kevin Henry is the voice behind clubisabella.com, where real-world experience meets honest product insight. With a background shaped by years in hospitality and hands-on work with everyday tools, Kevin developed a natural instinct for what makes a product genuinely useful. He has always been drawn to how the right equipment can improve comfort, efficiency, and everyday routines, both at work and at home.
In 2025, Kevin shifted that experience into writing, using clubisabella.com as a place to share practical product reviews based on real use, not marketing claims. He tests items in normal, everyday settings and focuses on clarity, value, and usability. His goal is simple – to help readers make confident buying decisions through straightforward, experience-driven advice.
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