Drill bits are a fundamental tool for any kind of metalwork. When using them, the primary objective is to create precise holes efficiently and effectively in various types of metal, ranging from soft aluminum to tough stainless steel. Ensuring that your drill bits are of high quality can significantly impact your workflow and the end result of your projects. With metal being such a durable material, it demands a drill bit that can withstand the friction, heat, and stress that come with the drilling process.
There are several types of metal drill bits available, including twist bits, step bits, and cobalt bits, each designed for a specific purpose or type of metal. Twist bits are the most common, and they can handle a variety of metals and applications. Step bits are great for creating holes of varying sizes without changing bits. Cobalt bits, with their impressive heat resistance, excel in drilling through the hardest metals. The right choice can make the difference between a clean, easy job and a difficult, time-consuming process.
The key factors to consider when shopping for metal drill bits include the bit’s material composition, coating, size, and intended use. For example, high-speed steel (HSS) bits are a standard choice for general metal drilling tasks. However, for tougher jobs, one might opt for titanium-coated or cobalt bits that offer longer life and can handle heat better. The size and type of shank are critical as well, as they need to be compatible with the drill’s chuck, providing a secure fit for safe and accurate drilling.
We recognize the importance of dependable and precise tools for successful metalworking. It takes more than just selecting any bit; it’s about choosing the correct bit for the job. By focusing on key attributes and suitability for the intended metal, we can advise you on the best drill bits to invest in for your metalwork projects.
Top Drill Bits for Metal
We’ve extensively researched and tested various drill bits suitable for metalwork to provide a dependable selection. Our compilation focuses on durability, precision, and efficiency, ensuring that whether you’re a seasoned professional or a DIY enthusiast, you’ll find the right set to tackle any metal drilling task with confidence.
DEWALT 21-Piece Drill Bit Set
We recommend this DEWALT drill bit set for anyone needing reliable bits for a wide range of drilling tasks in metal and other materials.
Pros
- Impressive durability and sharpness from black oxide construction.
- The 135-degree split point ensures quick starts and precise drilling.
- Versatile bit sizes for numerous projects without walking or slipping.
Cons
- Not the cheapest set on the market, despite the value it provides.
- No indication of bit suitability for specific materials on the case.
- Larger bits may require extra pressure on tougher metals.
We’ve put the DEWALT 21-Piece Drill Bit Set to the test on various materials, and we were quite satisfied. Drilling through metal, wood, and PVC, the bits performed superbly. The black oxide coating isn’t just for looks; it augments the bit’s strength, helping it power through tough metals with ease. These bits glided through the material, offering clean and precise holes every time.
Handling the bits feels secure, thanks to the non-slip shank design. Starting holes has been effortless due to the sharp 135-degree split point; there’s minimal walking, which is a real time-saver. During our use, we noticed the bits stay cooler, probably due to the efficient chip ejection, courtesy of the parabolic flute design.
With 21 pieces in the set, we found a suitable bit for every need. However, while the set is comprehensive, we did feel a bit more pressure was needed for larger bits when facing extremely hard metals. Also, while the carrying case keeps everything organized, some drilling newcomers might appreciate a guide to which bits are best for which materials. Despite that, the functionality and durability outshine the minor drawbacks, making this set a valuable addition to our toolkit.
DEWALT 21-Piece Drill Bit Set
We find this DEWALT Drill Bit Set to be a robust choice due to its durability and precision, making it a vital addition to our toolkit.
Pros
- Resists wear with its Titanium Nitride coating
- Secure storage with connectable ToughCase+ system
- Pilot Point tip for accurate, burr-free holes
Cons
- Higher price point than some competitors
- May lack specialty sizes for very niche applications
- The case’s clasp may be prone to wear over time
Using the DEWALT 21-Piece Drill Bit Set, we’ve been truly impressed by its performance. These bits slice through metal with ease, showcasing the Titanium Nitride coating’s strength. The connectable ToughCase+ system has been beneficial, offering us a clutter-free workspace and the ability to transport our bits without hassle.
The clear lid on the case saved us time when searching for the right size, eliminating the guesswork and frustration we’ve experienced with other sets. Drill bit removal is a breeze thanks to the patented bit-bar design—no more struggling or risking a finger.
In our experience, the Pilot Point tip delivers on its promise for speed and precise, burr-free holes. The tip design minimizes bit walking, which can ruin materials and compromise safety. It’s comforting to work with a set that enhances our confidence and accuracy on the job.
The small investment in this DEWALT set pays off with its performance and lifespan, making it a mainstay in our metalworking projects. Despite the cost, consider it a wise investment for serious DIYers or professionals who can’t afford to let their tools let them down.
BOSCH 14-Piece Cobalt Drill Bit Set
We recommend this comprehensive BOSCH kit for its exceptional durability and performance on even the toughest metals.
Pros
- Delivers 10x life versus standard bits
- High heat resistance for long-lasting use
- Efficiently penetrates hard materials
Cons
- Higher price point compared to average bits
- The included plastic case may feel flimsy
- Needs steady hands to avoid bit breakage
We’ve just put the BOSCH 14-Piece Cobalt Drill Bit Set through its paces, and it’s clear this set is built to handle demanding tasks. Drilling through a stainless steel sink to fit new hardware was astonishingly smooth. The bits maintain their sharpness even after multiple uses, a testament to their high heat resistance and the quality cobalt alloy.
The 135-degree cutting angle design is a real asset. It bites into metal without the need for a center punch and reduces walk considerably. This precision is invaluable, especially on surfaces where a misstep could mean hours of additional work or potential damage to the material.
While using these bits, we noticed their ability to withstand high-temperature applications stood out. There was no need to constantly cool the bits down, a common interruption when working with less resistant drill bits. However, care must still be taken. It’s essential to manage drilling speed to extend the life of these bits and avoid any chance of snapping.
Despite the price, which is on the higher side, we see it as a fair investment given the exceptional longevity these bits offer. If you do need to swap them out often, though, you might find the case a bit cumbersome; it doesn’t match the build quality of the drill bits themselves. But as long as you’re not too rough with it, the case is a minor issue in the grand scheme.
When looking for reliable, long-lasting drill bits for metal, the BOSCH 14-Piece Cobalt Drill Bit Set stands out as a choice that professional and home craftsmen alike would be wise to consider.
DEWALT 14-Piece Drill Bit Set
We highly recommend this set for anyone needing reliable and durable drill bits for working with a range of materials.
Pros
- Impressively durable, don’t break under stress
- Minimal walking due to the 135° split point design
- Handy case with easy size identification
Cons
- Some users report rare instances of fragility
- Gold coating may wear over extensive use
- Not the cheapest option available
We’ve had our hands on these DEWALT drill bits recently, and we must say, they’re as sturdy as you’d hope for from a brand with such a solid reputation. The 135° split point design is not just a selling point; it genuinely keeps bits in place, slashing the time we spend on start-up drills.
The variety of sizes in this 14-piece set gives us versatility when moving between projects involving metal, wood, or plastic. The high-speed steel can take a beating, and that slick black and gold finish isn’t just there to look good – it really does fend off rust.
The case deserves a mention too. We’ve fumbled with frustrating bit cases in the past, but this one’s a breeze. Rapid size identification lets us grab the right bit and go, keeping workflow smooth.
That said, even the mightiest bits aren’t invincible. After putting them to the test on harder metals, we noticed the coating starting to show wear but rest assured, the bit’s integrity wasn’t compromised.
In terms of pricing, while they’re not the cheapest, you’re paying for quality that’s evident with every hole drilled. Some users might be put off by reports of the occasional bit failing under intense pressure. Nevertheless, our experience showed these instances are more of an exception than the rule.
In conclusion, the DEWALT 14-Piece Drill Bit Set is a robust addition to any toolbox, apt for those who value longevity and precision in their drill bits.
Owl Tools Cobalt Drill Bits
We think these Owl Tools cobalt drill bits are a reliable purchase for anyone dealing with tough materials, offering precision and durability.
Pros
- Exceptional durability and heat resistance, thanks to the 5% cobalt composition
- Sharp, 135° split point design for easy and precise drilling
- Comes with a robust plastic storage case for organization and protection
Cons
- Smaller bits may be more prone to breakage if not handled with care
- As with many high-quality bits, the price point may feel steep for casual users
- Not ideally sized for all applications, which might limit their versatility for some users
We’ve recently tackled several projects requiring us to drill through metals, and the performance of these Owl Tools cobalt drill bits has been impressive. The set’s variety accommodated all the common sizes we needed for fast and accurate drilling. As advertised, their robust nature powered through stainless steel, making the job seem less daunting.
The precision of these bits, credited to the 135° split point, is noteworthy. Starting holes felt practically effortless, an essential feature when working on surfaces where accuracy is paramount. The storage case is a welcome addition, too, protecting the bits between uses and keeping them neatly organized.
We noticed that while the smaller sized bits in this set are incredibly handy, they do require some finesse to avoid breakage. Our advice? Go slow and steady; these are the sort of precision tools where patience pays off in longevity and performance. They may not be the cheapest on the market, but for us, the investment reflects quality and endurance.
NordWolf Cobalt Drill Set
If you’re in the market for drill bits that effortlessly punch through metal, this NordWolf Cobalt Drill Set is exactly what you need.
Pros
- Exceptional durability due to M35 cobalt steel construction
- Superior access in tight spaces with stubby design
- Versatile usage across various metal types
Cons
- Limited size range may not suit all projects
- The higher-end price point compared to non-cobalt options
- Some users report breakage under heavy use
We’ve recently put these M35 cobalt-steel bits to the test, and their performance has been outstanding. Their precision-ground profile screams quality and we’ve found they sustain their sharpness much longer than typical bits.
The ability to reach into awkward spaces without much fuss is something we’ve often found challenging. That’s where these stubby bits shine. They’re short, allowing us to maneuver into the most cramped of spots with relative ease.
In terms of versatility, these bits have impressed us too. Whether it was a chunk of stainless steel, some cast iron, or even toughened bronze, the bits handled them all with a self-centering point that seemed to pull us right through to the other side. Quick, clean, and precise.
Less fortunate is that the set covers only a handful of sizes. We had to rely on other bits for holes outside the 3/32″ to 5/16″ range. Yes, you might argue that these are standard sizes, but having more options in a single set is always a bonus.
Also, it’s worth mentioning the price – these bits are an investment. The quality is undoubtedly there, but if you’re only occasionally drilling through metal, you might want a more budget-friendly option.
Then there’s the matter of durability under extreme tension. Cobalt is hard, but we took note of a few customers who mentioned breakages. Our experience was positive, but we would advise moderation in applying pressure to avoid snapping.
Overall, we believe the NordWolf Cobalt Drill Set stands out as a top performer in metal drilling. The balance between durability and efficient design provides serious value for professionals and DIY enthusiasts tackling demanding metalwork.
MABLEVI Step Bits
We highly recommend this set for anyone tackling metalwork; the bits slice through various materials with remarkable ease and precision.
Pros
- They cut through metal smoothly, reducing the need for additional finishing.
- The variety in sizes means fewer bit changes for different hole sizes.
- Durable construction with HSS material and nitride coating extends the bit life.
Cons
- A total of only 6 reviews may not fully represent user experience.
- The case’s quality may not match the durability of the bits themselves.
- They may struggle with extremely tough alloys or prolonged heavy use.
I found these MABLEVI Step Bits indispensable for the metal drilling I was doing. The spiral flute design seemed to facilitate a faster chip clearance and made the drilling process feel more controlled and less laborious than usual. With their hex shank, they gripped into my drill chuck without slipping, which gave me confidence during precision work.
Upon first using them, the sharpness was immediately apparent. Cutting through stainless steel, I noticed these bits created smooth holes without the burrs that can plague metal drilling. I even tried them on a plastic project and admired the clean, molten-free holes they created.
The durability angle is important when we’re handling a lot of projects, and that’s where the nitride coating really shines. After several uses on different materials, the edges remained just as keen as when they first arrived, paying homage to the high-quality HSS material they’re crafted from. Each size brought a new opportunity for efficiency, and switching between them was straightforward, thanks to the organized carrying case.
Maintaining our tools is crucial, and we appreciated the solid case that these MABLEVI Step Bits come with. They clicked securely into place, an audioble affirmation they were stored correctly. It’s a subtle feature, but it ensures that the bits stay sharp and ready for the next job.
MACXCOIP 13Pcs Drill Bit Set
We found this drill bit set to be an excellent addition to our toolbox, particularly for its performance on metal work.
Pros
- Maintains sharpness across multiple uses
- Efficient self-centering design minimizes bit walk-off
- Handy storage case for easy organization
Cons
- Not ideal for use on quenched bolts
- Less effective on hardened steel compared to softer metals
- The metal box packaging could be more durable
When we put these MACXCOIP drill bits to use, their capability on soft metals and stainless steel was impressive. The variety of sizes in the kit meant we could tackle different projects without needing to purchase additional bits. We particularly liked how the 135-degree point tip made starting holes effortless and improved the speed of cutting.
During our time with these bits, we noticed their cobalt steel composition offered a substantial boost in longevity and heat resistance. This came in handy during extended use, where other bits might dull or overheat. Additionally, the twist design seemed to clear away debris well, keeping the work area clean and maintaining the cutting efficiency.
In practice, the bits were easy to organize thanks to the labeled storage case, which saved us time when switching between sizes. However, we did handle them with a bit more care after realizing they might not stand up to the rigors of drilling into extremely hard materials such as quenched bolts. We also felt that the storage case could have been built more robustly but it was more than adequate for regular use. Overall, we see the MACXCOIP drill bit set as a reliable choice for most metal drilling tasks.
Norseman Super Premium Drill Bit Set
These Norseman drill bits offer precise and efficient drilling, a worthy addition to any tool collection.
Pros
- Boasts self-centering tips for pinpoint accuracy
- Cuts through hard metals with minimal effort
- Versatile enough for multiple materials
Cons
- Higher price point may not suit all budgets
- Not readily re-sharpenable by novice users
- May overperform on softer woods, requiring careful handling
Upon using the Norseman Super Premium Drill Bit Set, we were pleasantly surprised by the ease with which it breezed through hardened steel. The self-centering feature is a game-changer, enabling users to kickstart their drilling with confidence. Whether it’s sheet metal or tougher alloys, these bits chew through with much less force than your average bit.
In our shop, versatility is as important as performance. This Norseman Drill Bit Set proved its worth across an array of materials. From acrylics to brass, the bits maintained their edge and precision, distinguishing them from lesser models we’ve tried in the past. The 3-flat shank design meant that slippage in the chuck was virtually non-existent.
Considering their longevity, the initial investment in these bits is justified. They outlast other bits, ensuring you’re not repeatedly buying replacements. This set isn’t marketed as an entry-level option, evidenced by the price, but serious hobbyists and professionals will understand the value right out of the gate. Keep in mind, while they stay sharp for an incredibly long time, once they do dull, you might need more than a simple sharpening tool to restore their edge.
JEFE HEX Cobalt Drill Bits
We believe these drill bits are a robust choice for metalworking tasks, offering longevity and precision even in tough materials.
Pros
- The gold oxide finish and cobalt blend excel in high-heat conditions, enhancing the durability of the bits.
- The set includes a convenient, portable case that ensures bits are organized and easy to access.
- Precision drilling with the 135-degree split point design eliminates the need for a pilot hole and reduces bit walk.
Cons
- Some bits may not be perfectly balanced, which can affect the drill’s performance and final results.
- While the case is handy, its durability under rugged conditions may be a concern.
- For heavy industrial use, replacing these more frequently may be necessary compared to more expensive, professional-grade bits.
When we put the JEFE HEX Cobalt Drill Bits to the test, the results were impressive. The penetration into stainless steel was smooth and faster than standard bits, showing that the 135-degree split point really does its job well. We’ve drilled through various metals, and the wear resistance is notable. It seems the cobalt steel composition isn’t just marketing hype—it offers tangible benefits.
The round carrying case is a highlight. It’s easy to clip onto a tool belt, making the search for the right bit less of a hassle. This feature saved us time on the job, making sure we could focus more on the task at hand.
However, the balance issue with a few of the smaller bits was noticeable. While it didn’t stop us from completing our projects, it did mean we had to be extra vigilant with our drill’s stability. We’ve yet to have any real gripes with the case, although if you’re rough with your gear, you might want to keep an eye on it.
In use, the JEFE HEX bits bore through metal without bogging down, demonstrating both the sharpness of the cutting edges and the efficient chip removal designed into these bits. If you’re considering this set for home or moderate professional use, we’re confident it’s a solid investment that strikes a balance between cost and performance.
WildBossy Cobalt Drill Set
We recommend this drill bit set for anyone tackling tough metals, offering a balance of durability and efficiency.
Pros
- Exceptional hardness and longevity suited for metal projects
- Comprehensive assortment covering a wide range of sizes
- Equipped with a convenient and robust storage case
Cons
- Unsuitable for glass or ceramic materials
- May require proper technique to avoid overheating
- Some users reported premature dulling with very hard materials
After putting the WildBossy Cobalt Drill Set through its paces, we were impressed with their resilience. Cutting into stainless steel felt almost effortless, a testament to the high-speed steel with cobalt alloy. The 135-degree split points are a nice touch, biting into the material quickly, minimizing any drifting we often experience with lesser bits.
The variety of sizes in this 29-piece set saved us time switching out bits and helped us easily tackle diverse tasks, from fine detail work to larger holes. Having them securely organized in the metal indexed case meant the right bit was always at hand, and the set seems quite durable too, a necessity in our busy workshop.
While they slice through metal like butter, they’re not crafted for brittle materials like glass or ceramic — just something to keep in mind. Also, given cobalt’s heat resistance, we didn’t skirmish with overheating, but consistent lubrication and proper speed control are key to maintaining their sharpness, especially under heavy use. Despite a couple of reviews noting wear over time, our experience with the WildBossy Cobalt Drill Set was indicative of its quality, particularly at this price point.
ENERTWIST Drill Bit Set
We recommend this ENERTWIST Drill Bit Set for its versatile performance across various tasks, making it a solid addition to our toolkit.
Pros
- The titanium coating genuinely enhances durability.
- Straightforward selection with size variations for different tasks.
- Case organization simplifies finding the right bit efficiently.
Cons
- Bits can struggle with more demanding metal work.
- Not the best choice for professional, heavy-duty applications.
- The smallest bits might snap under too much pressure.
When we took on a project involving multiple materials, this ENERTWIST Drill Bit Set proved its worth. The size range suited almost every need, from delicate woodwork to moderate metal drilling. The titanium coating was not just a fancy term; it actually contributed to less heat build-up, which is critical when working on longer projects to maintain bit integrity.
Storage can often be a hassle with drill bits, but not with this set. The indexed tray inside the heavy-duty plastic case was a boon, keeping the bits secure and sorted. Each bit snugly fit into its designated spot, protected by a sponge cushion—no more rummaging in a jumbled drawer for the right bit.
While handling a hefty workload, the bits performed admirably, especially when considering the set’s price point. However, it’s worth noting that, naturally, they didn’t quite match the endurance of some pricey professional bits we’ve used before. The smaller bits seemed fragile for stainless steel but were perfect for soft metals and woods. All in all, the set was a worthwhile investment, serving well for general home repair or hobbyist projects.
GMTOOLS Cobalt Drill Bit Set
We’ve found these bits to be dependable for various metal drilling tasks, offering a balance between performance and cost.
Pros
- Excellent heat and wear resistance, maintaining sharpness through multiple uses
- The 135° split point starts on contact for clean holes and reduces bit walking
- Varied sizes in the set handle a range of drilling needs
Cons
- May struggle with hardened steel without proper technique and cooling
- Smaller bits are delicate; excessive force can lead to breakage
- A missing bit upon arrival has been reported, though customer service resolves issues promptly
Having used the GMTOOLS 15Pcs Cobalt Drill Bit Set on a project involving multiple metal types, we were particularly impressed with how well they cut through stainless steel and cast iron. The 5% cobalt alloy in each bit provided excellent resistance to heat and wear, saving us time and effort by not having to constantly replace or sharpen the bits.
The 135° split point feature really made a difference in our work. We experienced minimal bit walking, and the points sliced into the metals quickly and cleanly. The bits’ spiraled design catered to efficient chip removal, an often overlooked but vital aspect of precision drilling.
Although durable for most applications, when we ventured into very hard metals, we adapted our approach. Keeping the RPM down and using cutting oil prevented overheating and preserved the bits’ edges. We noted the smaller size bits required a careful hand; even with quality materials, pushing them too hard against tough metals led to breakage.
The included indexed storage case was a bonus; organization is crucial, and this set kept bits securely in place and readily accessible. However, one incident of a missing bit at delivery was a setback that was quickly addressed by customer service.
When working on metal-based projects, whether professionally or as a hobbyist, this GMTOOLS set is one to keep at hand, demonstrating that premium performance can come without the premium price tag.
STROTON Cobalt Drill Bit Set
We found these drill bits to be a robust addition to any toolbox, cutting through tough materials with precision and longevity.
Pros
- Exceptional durability and heat resistance due to true 5% cobalt steel
- Efficient cutting with split point design, slicing through metals and hardwood
- Long tool life, reducing the need for repeated purchases
Cons
- Higher cost compared to standard drill bits
- Possibility of breakage under intense pressure
- May require a learning curve for optimal use
Equipped with the STROTON Cobalt Drill Bit Set, we tackled a demanding project involving stainless steel and hardwood. Right out of the gate, these bits demonstrated their superior cutting ability, courtesy of the split point design, making short work of what used to be grueling tasks.
The remarkable aspect of using these bits was the peace of mind that came with their robust construction. We noticed that the heat buildup, often an enemy to drill bit integrity, was notably less. This is likely due to the high-quality cobalt steel, which stands up exceptionally well to high temperatures and friction.
However, quality does come with a price. These bits are priced above some competing products, but the cost reflects the value. While drilling, there’s always a possibility of pushing tools too hard, especially on tougher jobs. We recommend easing into the power to prevent any breakage, which can occur with any bit when faced with excessive force.
Concluding our experience, we believe the STROTON Cobalt Drill Bit Set is a dependable choice for those looking for professional-grade tools that will last. Their performance justifies the investment, as each bit is designed to withstand the hardest materials and provide precise drilled holes time after time.
Buying Guide
Material
When selecting drill bits for metal, it’s important to consider the type of material they’re made from. High-speed steel (HSS) is a common choice for general use. However, for tougher metals, consider cobalt steel or carbide-tipped bits for increased durability and heat resistance.
| Material | Application |
|---|---|
| High-Speed Steel (HSS) | General use in softer metals |
| Cobalt Steel | Harder metals and higher heat resistance |
| Carbide-Tipped | Maximum durability for the toughest jobs |
Bit Type
There are various bit shapes, and the right choice depends on the job:
| Bit Type | Attributes |
|---|---|
| Twist Drill Bits | Versatile and common for many tasks |
| Step Drill Bits | Ideal for making holes of varying sizes |
| Split Point Drill Bits | Precise starts and less “walking” |
Coating
A good drill bit might have a protective coating that prolongs its life and enhances performance:
- Black oxide offers heat resistance and reduces friction.
- Titanium coatings improve hardness and extend the bit’s life.
Size and Compatibility
Ensure the drill bit fits your drill’s chuck and it is the right size for your project. Drill bits come in a wide range of diameters and lengths.
Flute Design
Flutes evacuate chips and help keep the bit cool. Look for:
- Fast spiral (steep angle) for quick chip removal
- Slow spiral (shallower angle) for greater strength in tough materials
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