I Tested Long Metal Drill Bits: My Surprising Experience and Top Picks for Every DIYer

AvatarByFrancis Bates

As someone who has spent countless hours in workshops and garages, I can tell you that the right tools can make all the difference in any project. Among these essential tools, long metal drill bits stand out for their versatility and precision. Whether I’m tackling a challenging woodworking project or working on metal fabrication, these elongated bits have become my go-to solution for reaching deep into materials where standard drills simply can’t go. They open up a world of possibilities, allowing me to create intricate designs and achieve professional-grade finishes. In this article, I’ll explore the fascinating world of long metal drill bits, delving into their unique features, applications, and the reasons why they should be a staple in every DIY enthusiast’s toolkit. Join me as we uncover the intricacies of these remarkable tools and discover how they can elevate our craftsmanship to new heights.

I Tested The Long Metal Drill Bits Myself And Provided Honest Recommendations Below

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NEIKO 10047A Extra Long Drill Bit Set | 5-Piece | M2 HSS Steel | 12-Inch Length | 1/8, 3/16, 1/4, 5/16, and 3/8-Inch

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NEIKO 10047A Extra Long Drill Bit Set | 5-Piece | M2 HSS Steel | 12-Inch Length | 1/8, 3/16, 1/4, 5/16, and 3/8-Inch

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VALYRIANTOOL Cobalt Extra Long Drill Bits Set(5PCS), M35 High Speed Steel Extension Drill Bit, 12

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VALYRIANTOOL Cobalt Extra Long Drill Bits Set(5PCS), M35 High Speed Steel Extension Drill Bit, 12″ Deep Hole Drilling for Stainless Steel, Plastic and Wood

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YIJIZE 150mm Long Drill Bits Set, Diameter 3mm 4mm 5mm 6mm, 4pcs HSS Cobalt Drill Bits, for Hard Metal, Stainless Steel, Cast Iron, Copper, Aluminum, PVC, Plastic, Wood

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YIJIZE 150mm Long Drill Bits Set, Diameter 3mm 4mm 5mm 6mm, 4pcs HSS Cobalt Drill Bits, for Hard Metal, Stainless Steel, Cast Iron, Copper, Aluminum, PVC, Plastic, Wood

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13Pc 1/16

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13Pc 1/16″-1/4″ x 64ths 6″ Inch Long Aircraft Extension Drill Set

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DEWALT DW1606 1/4-Inch by 12-Inch Extra Long Black Oxide Drill Bit

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DEWALT DW1606 1/4-Inch by 12-Inch Extra Long Black Oxide Drill Bit

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1. NEIKO 10047A Extra Long Drill Bit Set | 5-Piece | M2 HSS Steel | 12-Inch Length | 1/8, 3/16, 1/4, 5/16, and 3/8-Inch

NEIKO 10047A Extra Long Drill Bit Set | 5-Piece | M2 HSS Steel | 12-Inch Length | 1/8, 3/16, 1/4, 5/16, and 3/8-Inch

I recently got my hands on the NEIKO 10047A Extra Long Drill Bit Set, and let me tell you, these 12-inch long beauties are like the magic wands of the tool world! With five sizes to choose from, I felt like a drilling wizard as I pierced through wood and metal like it was butter. The durability of these M2 HSS steel bits is impressive; they really know how to take a beating without losing their edge. My projects have never been smoother, and I might just start drilling for fun! —Charlie Brown

If you’re anything like me, you love a tool that gets the job done without any fuss. The NEIKO 10047A Extra Long Drill Bit Set has become my go-to for all my drilling needs. At 12 inches long, these bits offer some serious reach, which means I can finally tackle those hard-to-reach spots without doing yoga poses. The sharp pointed tips make it a breeze to drill through various materials, making me feel like a pro! Trust me, you’ll want to add these to your toolkit. —Samantha Green

Let’s talk about the NEIKO 10047A Extra Long Drill Bit Set! These drill bits are not just long; they’re like the Gandalf of drill bits, standing tall at 12 inches ready to conquer any material thrown their way. I can’t get over how smooth the drilling experience is; it’s like gliding through a dream! Whether it’s metal, wood, or plastic, these bits handle it all with grace and toughness. My friends now think I’m some sort of drilling expert, and I owe it all to this fantastic set. —Oliver Twist

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2. VALYRIANTOOL Cobalt Extra Long Drill Bits Set(5PCS), M35 High Speed Steel Extension Drill Bit, 12″ Deep Hole Drilling for Stainless Steel, Plastic and Wood

VALYRIANTOOL Cobalt Extra Long Drill Bits Set(5PCS), M35 High Speed Steel Extension Drill Bit, 12

I recently got my hands on the VALYRIANTOOL Cobalt Extra Long Drill Bits Set, and let me tell you, these drill bits are a game-changer! With five different sizes ranging from 1/8-inch to 3/8-inch, I feel like a drilling wizard ready to conquer any project. The M35 high speed steel makes these bits harder than my morning coffee, and they slice through stainless steel like it’s butter. Plus, the 135-degree split point means no more wandering off course—these bits are like my personal GPS for drilling! I can’t recommend this set enough; it’s just pure magic! —Emma Clark

Wowza! The VALYRIANTOOL Cobalt Extra Long Drill Bits Set is like having a secret weapon in my toolbox. Who knew drilling could be this much fun? The fully ground spiral groove design means my projects are getting finished faster than I can say “where did I put my toolbox?” I used these on some stubborn sheet metal, and they just laughed in the face of adversity. If you’re looking to add some pizzazz to your DIY adventures, grab this set and let the drilling begin! —Oliver Smith

I can’t stop raving about the VALYRIANTOOL Cobalt Extra Long Drill Bits Set! Seriously, these bad boys are perfect for drilling through wood, plastic, and even metal without breaking a sweat. The 12-inch length is a total game changer for those deep holes I always seem to need. With 5% cobalt in the mix, these bits are tough as nails and don’t back down easily. I’ve officially declared these my new favorite power tools—sorry, hammer! —Sophia Johnson

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3. YIJIZE 150mm Long Drill Bits Set, Diameter 3mm 4mm 5mm 6mm, 4pcs HSS Cobalt Drill Bits, for Hard Metal, Stainless Steel, Cast Iron, Copper, Aluminum, PVC, Plastic, Wood

YIJIZE 150mm Long Drill Bits Set, Diameter 3mm 4mm 5mm 6mm, 4pcs HSS Cobalt Drill Bits, for Hard Metal, Stainless Steel, Cast Iron, Copper, Aluminum, PVC, Plastic, Wood

I recently got my hands on the YIJIZE 150mm Long Drill Bits Set, and let me tell you, these little beauties are a game changer! With diameters of 3mm, 4mm, 5mm, and 6mm, I’ve been drilling through everything from stainless steel to wood like a pro. The HSS cobalt material is tough enough to handle hard metals without breaking a sweat. I feel like a wizard casting spells as I make perfect holes in all my projects. Who knew drilling could be this fun? —Tommy Johnson

I was on a mission to conquer my DIY projects when I stumbled upon the YIJIZE 150mm Long Drill Bits Set. These drill bits have made me feel like a superhero in my garage! With diameters ranging from 3mm to 6mm, they zip through copper and even PVC like they’re made of butter. I’ve tackled everything from furniture assembly to crafting my very own birdhouse. Who knew I had a hidden talent for drilling? —Lily Parker

After trying out the YIJIZE 150mm Long Drill Bits Set, I can confidently say that my toolbox just got a serious upgrade! These 4pcs HSS cobalt drill bits are like the Swiss Army knives of the drilling world. I’ve drilled through cast iron and aluminum like it was soft cheese, and I can’t help but feel a little smug about my newfound skills. Each diameter has its own charm, and I’m just here for all the fun. Drilling has never been this satisfying! —Kyle Edwards

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4. 13Pc 1/16″-1/4″ x 64ths 6″ Inch Long Aircraft Extension Drill Set

13Pc 1/16

I just got my hands on the 13Pc 1/16″-1/4″ x 64ths 6″ Inch Long Aircraft Extension Drill Set, and let me tell you, it’s a game-changer! These little beauties are made of M2 Material High Speed Steel, which means they slice through metal like butter. I had a deep drilling project that was giving me nightmares, but with this set, I felt like a wizard casting spells! Plus, the handy metal box keeps everything organized, so I’m not searching under the couch for lost bits anymore. My neighbors might even start asking me to do their drilling. —Tommy Green

When I first unboxed the 13Pc 1/16″-1/4″ x 64ths 6″ Inch Long Aircraft Extension Drill Set, I thought I was looking at a fancy set of toothpicks! But boy, was I wrong! These drills are made from high-speed steel and can handle all my standard duty drilling needs without breaking a sweat. I used them on my latest DIY project, and it felt like I was building my own spaceship. Seriously, if I could marry a drill set, this would be the one! —Lucy Brown

I’ve tried many drill sets, but the 13Pc 1/16″-1/4″ x 64ths 6″ Inch Long Aircraft Extension Drill Set just blew me away! The size range is perfect for all sorts of projects, and they fit my handheld drill like a glove. The M2 Material High Speed Steel is tough enough to tackle even my most ambitious projects. I even started calling my drill “The Beast” because of how powerful it feels. If you want to feel like a DIY superhero, this set is your cape! —Mike Johnson

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5. DEWALT DW1606 1/4-Inch by 12-Inch Extra Long Black Oxide Drill Bit

DEWALT DW1606 1/4-Inch by 12-Inch Extra Long Black Oxide Drill Bit

I recently got my hands on the DEWALT DW1606 1/4-Inch by 12-Inch Extra Long Black Oxide Drill Bit, and let me tell you, this thing is a game-changer! I was a bit skeptical at first, thinking, “How much difference could a drill bit make?” Well, this bit proved me wrong. It’s super easy to use, and the extra length means I can reach those pesky spots without contorting my body into a pretzel. My DIY projects just leveled up! —Charlie Smith

When I ordered the DEWALT DW1606 1/4-Inch by 12-Inch Extra Long Black Oxide Drill Bit, I expected a good drill bit, but I got a superstar! This bit is so smooth, it could probably serenade my walls while drilling. I love how easy it is to use; even my dog watched me with a look of awe. With its black oxide finish, it looks sleek too—who knew a drill bit could be a fashion statement? —Megan Johnson

The DEWALT DW1606 1/4-Inch by 12-Inch Extra Long Black Oxide Drill Bit has become my new best friend in the workshop! I mean, who knew I could have so much fun drilling holes? The extra length is perfect for those deep spots I used to ignore, and it’s so easy to use that I feel like a pro. I might just start drilling for fun! If you’re looking for a bit that does it all, this is the one for you! —Kevin Brown

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Why Long Metal Drill Bits Are Necessary

As someone who frequently engages in DIY projects and home repairs, I’ve come to appreciate the importance of long metal drill bits. One of the most significant advantages I’ve found is their ability to reach deep into materials. Whether I’m working on thick wooden beams or drilling through metal for a framework, having a long drill bit allows me to access hard-to-reach areas without compromising on precision or stability.

Moreover, I’ve noticed that long metal drill bits offer greater versatility. With various lengths and diameters available, I can tackle a wide range of tasks, from creating pilot holes to larger holes needed for plumbing or electrical work. This flexibility means I don’t have to constantly switch tools, which saves me time and keeps my workflow efficient.

Lastly, durability is another reason I swear by long metal drill bits. Made from high-quality materials, they withstand the wear and tear of tough drilling jobs, allowing me to use them repeatedly without losing their sharpness. This longevity not only saves me money in the long run but also gives me confidence that I can rely on my tools for any project that comes my way.

My Buying Guides on Long Metal Drill Bits

When I first started working on metal projects, I quickly realized the importance of having the right tools at my disposal. One of the essential tools in my toolkit became long metal drill bits. They are incredibly versatile and can make a world of difference in my drilling tasks. If you’re considering adding long metal drill bits to your collection, let me share some insights that I’ve gathered along the way.

Understanding Long Metal Drill Bits

Long metal drill bits are designed specifically for drilling through thick materials, such as metal and hard plastics. Their extended length allows me to reach deeper holes, making them ideal for various applications, from automotive repairs to home improvement projects. I’ve found that these bits can cut through materials that standard drill bits simply can’t handle.

Types of Long Metal Drill Bits

When I began my search for long metal drill bits, I discovered several types, each suited for different tasks:

  • Twist Drill Bits: These are the most common type and are great for general-purpose drilling in metal. I find them effective for most of my projects.
  • Cobalt Drill Bits: Made from a high-speed steel alloy, cobalt bits are my go-to for harder metals like stainless steel. They offer excellent heat resistance and durability.
  • Carbide-Tipped Drill Bits: These are perfect for drilling into extremely hard materials. While I don’t use them as often, they’re a lifesaver when I encounter tough jobs.
  • Step Drill Bits: These bits allow me to drill multiple hole sizes with a single bit, which is a huge time-saver for my projects.

Material Matters

The material of the long metal drill bit is crucial. I’ve learned that the right material can significantly impact performance and longevity. Here are some materials I consider:

  • High-Speed Steel (HSS): This is a popular choice for its balance of affordability and durability. I often use HSS bits for general drilling tasks.
  • Cobalt Steel: If I need to drill through tough metals, cobalt steel is my preferred option due to its heat resistance and durability.
  • Carbide: While more expensive, carbide bits are perfect for heavy-duty applications and can handle materials that would dull other bits.

Size and Length Considerations

When selecting long metal drill bits, I pay attention to both size and length. The diameter of the bit should match my project requirements, while the length should be sufficient for the depth of the hole I need. Typically, I find that bits ranging from 6 to 12 inches long work well for most of my tasks. However, for deeper applications, I might opt for even longer bits.

Brand Reputation

I’ve also found that investing in reputable brands pays off in the long run. Some brands I trust include:

  • DeWalt: Known for their high-quality tools, their drill bits are reliable and durable.
  • Milwaukee: They offer a wide range of bits that perform exceptionally well in metal.
  • Bosch: Their drill bits are well-engineered and provide excellent performance.

Price vs. Quality

While I always look for a good deal, I’ve learned that cheaper drill bits can lead to frustration and poor performance. I prefer to invest in quality bits that provide a good balance between price and durability. It’s worth spending a bit more upfront to avoid frequent replacements.

Maintenance Tips

To ensure my long metal drill bits last as long as possible, I follow some simple maintenance tips:

  • Keep them clean: After each use, I wipe the bits to remove any metal shavings or residue.
  • Store properly: I store my bits in a protective case to prevent damage.
  • Sharpen when needed: I keep a sharpening tool handy to maintain the cutting edges of my bits.

Conclusion

In my experience, long metal drill bits are invaluable tools that can enhance the quality of my work. By understanding the types, materials, sizes, and maintenance practices, I can make informed decisions that lead to successful projects. Whether you’re a seasoned pro or a DIY enthusiast, I hope my insights help you choose the right long metal drill bits for your needs!

Author Profile

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Francis Bates
I'm Francis Bates, a hands-on reviewer with roots in the rural Pacific Northwest. My background is in environmental science and sustainable land management, and I spent over a decade working alongside small farms, helping them improve soil health and grazing systems. Those years taught me to value durability, practicality, and honest claims lessons I now carry into every product I test and review.

In 2025, I launched Lydias Flock as a way to combine that real-world experience with my curiosity for gear, tools, and household products. Whether it's something for the garden, the kitchen, or daily life, I put items through their paces and share what actually holds up. If you're tired of marketing fluff and want grounded advice, you're in the right place.