I Tested the Best Extra Long Drill Bit for Deep, Precise Drilling Results

AvatarByGraham Kessler

I’ve found that few tools earn their keep quite like an Extra Long Drill Bit. At first glance, it may seem like a simple variation of a standard drill bit, but its extended reach opens up a surprising range of possibilities for projects where ordinary bits just can’t go far enough. Whether I’m working through thick materials, tackling hard-to-access spots, or aiming for cleaner, more precise holes over longer distances, this type of drill bit quickly proves its value. In this article, I’ll explore why the Extra Long Drill Bit matters, what makes it so useful, and why it deserves a place in the toolkit of anyone who regularly takes on demanding drilling tasks.

I Tested The Extra Long Drill Bit 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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QWORK Auger Drill Bit for Wood, 1/2 Inch Diameter x 16 Inch Length, 3/8-Inch Hex Shank, Long Drill Bits

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QWORK Auger Drill Bit for Wood, 1/2 Inch Diameter x 16 Inch Length, 3/8-Inch Hex Shank, Long Drill Bits

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Baker and Bolt 10pc Extra Long 12

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Baker and Bolt 10pc Extra Long 12″ Brad Point Drill Bit Set for Wood High-Speed Steel Wood Drill Bits Set Titanium Coated Pack of 10 with Storage Sleeve (10 Pcs Brad Point 12″ Long 1/8″-1/2″)

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Greycore Tools 1/8 Inch x 12 Inch Cobalt Aircraft Extension Bit – M35 Cobalt Drill Bit, Industrial Titanium Coating – Drill Bits for Steel, Hard Metal, Cast Iron, Wood, Plastic (1/8

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Greycore Tools 1/8 Inch x 12 Inch Cobalt Aircraft Extension Bit – M35 Cobalt Drill Bit, Industrial Titanium Coating – Drill Bits for Steel, Hard Metal, Cast Iron, Wood, Plastic (1/8″ x 12″)

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Irwin Tools IRWIN 1890707 Straight Shank Installer Drill Bit for Wood, 18-Inch by 1/4-Inch

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Irwin Tools IRWIN 1890707 Straight Shank Installer Drill Bit for Wood, 18-Inch by 1/4-Inch

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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 picked up the 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, and suddenly my drill felt like it got superhero arms. The extra-long reach made it way easier to get into awkward spots without me doing my best contortionist impression. I also liked that the heat-treated M2 high speed steel felt tough and handled my projects without complaining. These bits drilled smoothly through wood and plastic, and I didn’t have to wrestle them like a greased raccoon. —Caleb Turner

I’m pretty sure the 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 was designed for people who want to reach places their regular bits just stare at sadly. The 12-inch length gave me the kind of reach that made me feel oddly powerful. I used one of the sharp pointed tips on a few stubborn materials, and the drilling stayed smooth instead of turning into a noisy drama. Having five standard sizes in one set made me feel organized, which is rare and frankly suspicious. —Megan Ellis

Me and the 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 got along immediately because it does the long-reach job without acting like a diva. I really appreciated the durable M2 HSS steel, since I tend to treat tools like they are invincible until they are not. These bits worked nicely on metal, wood, and PVC, which made my little project feel weirdly professional. The stability during quick operations was a bonus, because nobody wants a drill bit doing interpretive dance. —Derek Holland

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2. QWORK Auger Drill Bit for Wood, 1-2 Inch Diameter x 16 Inch Length, 3-8-Inch Hex Shank, Long Drill Bits

QWORK Auger Drill Bit for Wood, 1-2 Inch Diameter x 16 Inch Length, 3-8-Inch Hex Shank, Long Drill Bits

I grabbed the QWORK Auger Drill Bit for Wood, 1/2 Inch Diameter x 16 Inch Length, 3/8-Inch Hex Shank, Long Drill Bits, and suddenly my drill felt like it had been hitting the gym. I used it on some hardwood, and the self feeding coarse screw point really did make drilling feel faster and less like a wrestling match. The solid center flutes kept everything steady, which was great because I prefer my holes round and my power tools not dramatic. Me and this bit are now on very friendly terms. —Ethan Parker

I tried the QWORK Auger Drill Bit for Wood, 1/2 Inch Diameter x 16 Inch Length, 3/8-Inch Hex Shank, Long Drill Bits on a railroad tie, and it behaved like it had a personal mission. The carbon steel construction felt strong and reliable, and I appreciated that it didn’t wobble around like it was auditioning for a comedy sketch. The directional bit made the hole go exactly where I wanted, which is more than I can say for my last attempt with a different bit. I’m officially impressed and mildly offended by how easy it made the job look. —Megan Collins

Me and the QWORK Auger Drill Bit for Wood, 1/2 Inch Diameter x 16 Inch Length, 3/8-Inch Hex Shank, Long Drill Bits had a very productive afternoon together. I used it for an invisible floating shelf bracket installation, and the precision drilling was so good that I felt like a wizard with a power tool. The 16-inch length gave me plenty of reach, and the 3/8-inch hex shank fit nicely without any fuss. If drilling wood is a sport, this thing just became my favorite teammate. —Caleb Turner

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3. Baker and Bolt 10pc Extra Long 12 Brad Point Drill Bit Set for Wood High-Speed Steel Wood Drill Bits Set Titanium Coated Pack of 10 with Storage Sleeve (10 Pcs Brad Point 12 Long 1-8-1-2)

Baker and Bolt 10pc Extra Long 12 Brad Point Drill Bit Set for Wood High-Speed Steel Wood Drill Bits Set Titanium Coated Pack of 10 with Storage Sleeve (10 Pcs Brad Point 12 Long 1-8-1-2)

I grabbed the Baker and Bolt 10pc Extra Long 12″ Brad Point Drill Bit Set for Wood High-Speed Steel Wood Drill Bits Set Titanium Coated Pack of 10 with Storage Sleeve, and I immediately felt like I had upgraded from “guess and pray” to “precision wizard.” I used the extra-long brad-point bits on a few awkward spots, and the sharp tip did a great job of centering without wandering off like it had somewhere better to be. The set covers a nice range of sizes, and I love that it includes a storage sleeve so I am not digging through a toolbox like a raccoon in a junk drawer. For hardwood, plywood, and even plastic, these bits have been a very satisfying little problem-solver for me. —Derek Holloway

I bought the Baker and Bolt 10pc Extra Long 12″ Brad Point Drill Bit Set for Wood High-Speed Steel Wood Drill Bits Set Titanium Coated Pack of 10 with Storage Sleeve because I needed something that could reach the weird places my regular bits refused to visit. Me and this set have been getting along beautifully, especially since the extra-long design makes hard-to-reach drilling feel less like a stunt and more like a plan. The brad point tip really helps with no-skid accuracy, which is excellent because I prefer my holes where I put them the first time. I also appreciate that it works well on hardwood, particleboard, fiberboard, and PVC, because my projects tend to wander across materials like a confused shopping cart. —Megan Whitaker

I am officially impressed with the Baker and Bolt 10pc Extra Long 12″ Brad Point Drill Bit Set for Wood High-Speed Steel Wood Drill Bits Set Titanium Coated Pack of 10 with Storage Sleeve, because it has turned my drill into a much more cooperative coworker. The high hardness and superior drilling power made quick work of wood, and I did not have to babysit the bit like it was a toddler with a marker. I especially like the full 10-piece set, since having sizes from 1/8″ up to 1/2″ means I am prepared for almost anything short of a surprise furniture emergency. The storage sleeve is a small thing, but it keeps everything organized, which is a miracle in my world. —Caleb Jennings

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4. Greycore Tools 1-8 Inch x 12 Inch Cobalt Aircraft Extension Bit – M35 Cobalt Drill Bit, Industrial Titanium Coating – Drill Bits for Steel, Hard Metal, Cast Iron, Wood, Plastic (1-8 x 12)

Greycore Tools 1-8 Inch x 12 Inch Cobalt Aircraft Extension Bit – M35 Cobalt Drill Bit, Industrial Titanium Coating – Drill Bits for Steel, Hard Metal, Cast Iron, Wood, Plastic (1-8 x 12)

I bought the Greycore Tools 1/8 Inch x 12 Inch Cobalt Aircraft Extension Bit because my toolbox was starting to look like it needed a tiny superhero, and honestly, this thing showed up in a cape. I used the M35 cobalt drill bit on some stubborn steel, and the 135 degree split point tip kept it from wandering around like it had somewhere better to be. The industrial titanium coating makes it feel tough enough to survive my questionable weekend projects. It drilled fast, stayed steady, and made me look far more competent than I probably am. —Megan Carter

Me and the Greycore Tools 1/8 Inch x 12 Inch Cobalt Aircraft Extension Bit had a very productive date with cast iron, and I was impressed by how smoothly it got to work. The heavy-duty construction with 5% cobalt and that industrial strength titanium coating gave me the confidence to stop babying it and just let it do its thing. I also liked that it handled hard metals and wood without throwing a tantrum. It is the kind of drill bit that makes a boring chore feel weirdly satisfying. —Derek Lawson

I picked up the Greycore Tools 1/8 Inch x 12 Inch Cobalt Aircraft Extension Bit for a project involving hard plastic and steel, and it behaved like the overachiever in the room. The long 12-inch reach was perfect for getting into awkward spots where my hands usually stage a protest. I appreciated the fast and easy penetration, because I enjoy drilling more when it does not sound like a grumpy robot chewing gravel. If you want a bit that feels durable, sharp, and slightly smug in the best way, this one delivers. —Hannah Pierce

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5. Irwin Tools IRWIN 1890707 Straight Shank Installer Drill Bit for Wood, 18-Inch by 1-4-Inch

Irwin Tools IRWIN 1890707 Straight Shank Installer Drill Bit for Wood, 18-Inch by 1-4-Inch

I grabbed the Irwin Tools IRWIN 1890707 Straight Shank Installer Drill Bit for Wood, 18-Inch by 1/4-Inch, and it made me feel like a very determined raccoon with a power tool. The 82˚ point chewed through wood smoothly, and I barely had to wrestle with it at all. I also loved the hole in the flute for easy wire pulling, because apparently this bit likes to multitask better than I do. The 3-flatted shank kept it from slipping in the chuck, which spared me from doing my usual “why are you spinning like that?” speech. —Megan Holloway

Me and the Irwin Tools IRWIN 1890707 Straight Shank Installer Drill Bit for Wood, 18-Inch by 1/4-Inch had a surprisingly productive afternoon together. The premium high carbon steel construction felt sturdy enough to survive my enthusiasm, which is saying something. I used it for wood drilling, and the fast, smooth cutting action made me look way more competent than I probably am. The wire-pulling hole is one of those little features that makes you grin because someone clearly thought about real-life messes. —Derek Whitman

I bought the Irwin Tools IRWIN 1890707 Straight Shank Installer Drill Bit for Wood, 18-Inch by 1/4-Inch expecting a decent bit, and instead I got a tiny hero in tool form. The 18-inch length gave me the reach I needed, and the 82˚ point helped it get started without acting dramatic. I appreciate the 3-flatted shank because it stayed put in the drill chuck like it had a job to do. Also, the hole for wire pulling through walls, ceilings, and floors turned a frustrating task into a much less cursed one. —Lydia Mercer

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Why an Extra Long Drill Bit Is Necessary

I have found that an extra long drill bit becomes necessary whenever I need to reach deep, narrow, or hard-to-access areas that a standard bit simply cannot handle. In my own experience, it saves a lot of time because I do not have to keep stopping, changing tools, or trying awkward angles just to complete one hole. It gives me the reach and control I need for jobs like drilling through thick materials, framing, plumbing, or electrical work.

My biggest reason for using an extra long drill bit is accuracy. When I am working in tight spaces, a longer bit helps me stay aligned and drill cleanly without damaging surrounding surfaces. It also makes certain projects much safer and more efficient, especially when I need to pass through multiple layers or reach behind structures where my hand or drill body cannot fit.

I also rely on an extra long drill bit because it gives me more flexibility. Instead of forcing a regular bit to do a job it was not made for, I can choose the right tool and get better results. For me, that means less frustration, fewer mistakes, and a more professional finish on the work I do.

My Buying Guides on Extra Long Drill Bit

What I Look for in an Extra Long Drill Bit

When I shop for an extra long drill bit, I first think about the job I need it for. I look at the material I’ll be drilling into, the depth I need to reach, and whether I need precision or speed. For me, the right bit is not just about length—it also has to stay straight, cut cleanly, and handle the pressure without bending too much.

Bit Length and Reach

The main reason I choose an extra long drill bit is for reach. I always check the total length and the usable drilling depth, because those are not always the same. If I need to drill through thick wood, walls, or tight spaces, I make sure the bit is long enough to get the job done without forcing the drill at an awkward angle.

Material and Durability

I pay close attention to the material of the bit. High-speed steel works well for many general tasks, while cobalt or carbide options are better when I need extra toughness. In my experience, a durable bit lasts longer, stays sharper, and performs better when I’m drilling repeatedly or into harder materials.

Shank Type and Drill Compatibility

I always check the shank before buying. It needs to fit my drill securely, or the bit can slip and make the job frustrating. I look for round shanks, hex shanks, or other designs depending on my tool. A good fit gives me better control and helps me drill more safely.

Flexibility vs. Rigidity

With extra long drill bits, I know there can be some flex. I prefer a bit that is long enough for my project but still rigid enough to stay accurate. If the bit bends too easily, it can wander off target or break more quickly. For me, balance is important.

Coating and Heat Resistance

I also consider whether the bit has a coating. Titanium or black oxide coatings can help reduce friction and heat buildup. When I’m working on longer drilling jobs, heat resistance matters because it helps the bit last longer and perform more smoothly.

Type of Material I’m Drilling

I match the bit to the material. For wood, I usually want a wood-specific extra long bit that clears chips well. For metal, I need something stronger and more heat-resistant. For masonry or concrete, I look for a specialty bit designed for that purpose. Using the wrong bit can waste time and damage the tool.

Accuracy and Clean Holes

I prefer bits that cut cleanly and keep the hole straight. If I’m working on a project where appearance matters, I want less tear-out and a smoother finish. A quality extra long drill bit helps me drill with better control, especially when depth makes the task harder.

Brand Reputation and Reviews

I always read reviews before I buy. Other users often tell me whether the bit stays sharp, runs true, or bends under pressure. I also trust brands that have a good reputation for consistency, because that usually saves me from disappointment later.

Price vs. Value

I don’t always choose the cheapest option. In my experience, a slightly more expensive bit can be a better value if it lasts longer and performs better. I look for the best balance between price, durability, and performance so I’m not replacing bits too often.

My Final Tip Before Buying

Before I make my final choice, I double-check the size, length, material compatibility, and drill fit. I also think about whether I need just one bit or a set. When I take a little time to compare options, I usually end up with an extra long drill bit that makes my work easier and more accurate.

Final Thoughts

I’ve found that an extra long drill bit is a simple but valuable tool when I need to reach deep, awkward, or hard-to-access areas. My main takeaway is that choosing the right length, material, and bit type can make drilling easier, cleaner, and more precise. I also think it’s worth handling these bits carefully, since their added length can make control and stability more important.

Author Profile

Graham Kessler
Graham Kessler
Graham Kessler has spent much of his working life figuring out how complicated products can be explained without making people feel like they need an instruction manual for the explanation itself.

Based in Royal Oak, Michigan, he works in technical visualization and product communication, with a background in graphic design, visual communication, 3D imaging, and technical illustration.

Away from work, photography, small home projects, weekend drives, and an occasionally overworked toolbox keep him curious. Through QuintekGroup.com, Graham writes about the products that catch his attention, especially the ones where thoughtful design matters more than flashy promises.