10 Best Drill Bits (Review) In 2021
Ever since he was a child, Jason has loved repairing, building and creating things. Growing up, he spent all his free time carving intricate woodcraft pieces that soon caught the eye of neighbours and friends. Before he knew it, Jason turned his hobby into a job, earning an income from being his hometowns handyman. Many years have passed since then but Jason’s enthusiasm for woodwork remains the same. He can usually be found in his workshop, crafting furniture or restoring old treasures.
1. DEWALT Titanium Drill Bit Set
Key Features
Titanium pilot point for long life
Starts on contact for cleaner holes
No spin shanks
Clip latch for secure closing
Tapered web increases durability
1/16-inch to 1/2 inch sizes
The undoubtedly best choice for the best metal drill bits set is the DEWALT Titanium Drill Bit Set that uses a titanium pilot point to guarantee longevity, and it starts on contact, ensuring clean holes, less mess, and greater precision and uniformity across your projects. The clip latch means secure closing, which adds further accuracy, while the tapered web design increases durability, making it an exceptional addition to any hobbyist or professional toolbox. The bit sizes range from 1/26-inch to 1/2-inch wide, providing useful versatility for a variety of home improvement or minor construction jobs, and everything comes in an easy-to-carry and store plastic case to help keep everything organized.
2. COMOWARE Titanium Twist Drill Bit Set
Key Features
HSS titanium coating
2 flutes form clears chips and debris
Quick change compatibility
Suitable for wood, metal, and plastic
Conveniently organized holder
Twist design increases cutting speed
Novice DIYers and anyone who desperately needs bits but can’t afford the top-of-the-range right now should consider the risk-free COMOWARE Titanium Twist Drill Bit Set. This budget pick is an ideal addition to your growing toolbox and will help you hit the ground running to ensure simple jobs are more straightforward than ever before. The HSS titanium coating is one of the most durable around, while its two flute form clears chips and debris with ease. The 13-piece set is suitable for wood, metal, and plastic, giving you some of the best results you can expect, and everything comes in a convenient plastic holder that will keep things organized without taking up too much space.
3. BLACK+DECKER Screwdriver & Drill Bit Set
Key Features
109-piece
Variety of 1- and 2-inch screw driving bits
Portable hard storage case with extra space
Suitable for wood, metal, masonry
Range of component sizes for all projects
Ideal for frequent use
It doesn’t matter if you’re a professional or buying your first ever set of drill bits or screwdriver set; you want to find something that offers the best value possible. This is no easier than with the comprehensive BLACK+DECKER Screwdriver & Drill Bit Set, which includes a remarkable 109 pieces that will guarantee exceptional versatility across a wide range of projects. You will find both 1- and 2-inch driving bits for bigger jobs, which can perform admirably for metal, wood, and masonry regardless of the task. This makes it an excellent choice for frequent use because of their durability and means you can approach each project with absolute confidence.
4. Owl Tools 10 Piece Masonry Drill Bits Set
Key Features
10-piece set
Compatible with multiple materials
Durable industrial grade carbide tips
Convenient storage case for organization
Range of bit width sizes
Lifetime guarantee
Anyone who spends their entire lives working with brick should look no further than the Owl Tools 10 Piece Masonry Drill Bits Set to solve all of their drilling needs. The modest set comes with all the essentials, and while they are designed for brickwork, they are also suitable for other materials to give you a little more incentive. You can use them with ceramic tile, mirrors, and hard plastic, among others, and there is also a range of sizes that include 1/8″, 1/4″, 1/4″, 5/16, 3/8″, and 1/2″ to suit multiple jobs. The set comes with a lifetime guarantee, showing the meaning you can trust it to last.
5. Amartisan Hex Head Allen Wrench Drill Bit Set
Key Features
Hex-bit head design
High-quality S2 alloy steel material
Compatible with manual and power tools
Easy to store and organize
Multiple bit sizes for a range of jobs
20 bits overall
The Amartisan Hex Head Allen Wrench Drill Bit Set is one of the more unique styles, making it an essential addition to your toolbox. The hex-bit head design fits firmly in a hex shank, and it is constructed of high-quality S2 alloy steel while also boasting magnetic heads that provide accuracy. The set is compatible with power tools and regular tools giving you plenty of options, and the variety of sizes give you plenty of options when facing new projects, giving you an answer for – almost – everything. They are easy to store and organize, keeping everything in place and preventing them from getting lost, so you’ll not need to rebuild your collection.
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6. Bosch 9-Piece Impact Tough Titanium Drill Bit Set
Key Features
9-piece set
Impact-rated for 2x durability
Suitable for heavy- and light-gauge metal
No-skate tips for accuracy
Long flute design
Titanium coated shield
For exceptional durability, the Bosch 9-Piece Impact Tough Titanium Drill Bit Set is exactly what you need to tackle the most demanding jobs. Each bit is impact rated for twice the durability compared to competing styles, and this makes it as effective on heavy-gauge metal as it is for the lighter alternative. It comes with no-skate tips that ensure accuracy, and the long flute design with a spiral style provides precision. Thanks to titanium coating, it is one of the best for longevity, being resistant to wear and ensuring consistent performance for many projects many years from the day you first tried them.
7. Amoolo Cobalt Drill Bit Set
Key Features
Industry grade high-speed steel
Wear-resistant and durable
135° split point
Suitable for a range of materials (except glass and ceramic)
1/16-inch to 1/4-inch bit sizes
13-piece set
The Amoolo Cobalt Drill Bit Set includes a variety of metal drill bit options constructed of industrial-grade high-speed steel that will lead to effortless and easy operation with fantastic results. Such material makes it wear-resistant and durable which ensures clean holes and minimizes mess across a variety of materials. However, they are not suitable for glass and ceramic, so bear this in mind when using it. The 135° split point tips style decreases friction which keeps the heat down and protects the material, and with 1/16-inch to 1/4-inch bit options to choose from, there is something for every project, especially if you’re looking to drill holes at home.
8. DEWALT Black Oxide Coated HSS Twist Drill Bit Set
Key Features
14-piece set
Black oxide finish
135° split-point drills prevent walking
Parabolic flute design
Wear-resistant
Range of sizes for all job demands
The DEWALT Black Oxide Coated HSS Twist Drill Bit Set offers the quality you’d expect from one of the construction industry’s leading brands. The 14-piece set is constructed using the best high-speed steel, and it also includes 135° split-point drills that prevent walking, keeping everything in order, increasing precision, and delivering a thoroughly professional job, even if you don’t know what you’re doing. The black oxide finish and parabolic finish is something you can expect to find on some of the best drill bits around, and this contributes to wear resistance while also removing chips, and the set’s range of sizes makes it a set suitable for all job demands.
9. HURRICANE 230 Pieces Titanium Twist Drill Bit Set
Key Features
Premium material ensures durability
Plastic storage case for easy organization
135° fast cutting point
Titanium coated surface prevents rusting
Ideal for wood, steel, aluminum, zinc alloy
3/64-inch up to 1/2-inch size range
If you’re looking for the best drill bits that are the best for various sizes, there is nothing better than the HURRICANE 230 Pieces Titanium Twist Drill Bit Set. This is because of the wide range of pieces included, making it something suitable for any job, no matter how complicated. The premium high-speed steel ensures durability, as does the titanium coated surface. It is ideal for a variety of materials, such as wood and steel, and with the 135° fast cutting point, you are assured fast and simple penetration that will make tough jobs easier than ever before. To top it all off, the plastic case that includes bits ranging from 3/64-inch up to 1/2-inch in size keeps everything secure.
10. Drill America 29 Piece Heavy Duty Steel Drill Bit Set
Key Features
High-speed steel material
Black and gold oxide finish
1/16-inch to 1/2-inch bit sizes
Self-centering 135-degree split point
Compact storage case with clip
Assured hardness and wear resistance
Professionals looking for the premium pick should always consider the Drill America 29 Piece Heavy Duty Steel Drill Bit Set. Here, you’ve got a straightforward set of bits that use high-speed steel and a black oxide finish (plus gold) to deliver exceptional heat and wear resistance. The self-centering 135-degree split point will shave precious seconds from your projects and also deliver the precision you need, and with 1/16-inch to 1/2-inch bit sizes, there is enough variety in there to tackle any project. With this, you can easily drill sheet metal or holes in wood, and anything else you feel like working on.
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Features To Consider With Drill Bits
These drill bits offer a variety of useful and reliable results, but if you’re unsure about which drill bit options are right for you, check out these essential key features to consider so you can purchase the ideal set with confidence.
Types
There are many types of drill bits to look for, so it’s vital that you understand the best type for you. At first glance, it can be achingly overwhelming to search through the myriad of drill bits available. However, while there are many (and we mean many) drill bit types, the average hobbyist is unlikely to need more than a select few.
These are twist bits, masonry bits, countersink bits, hex bits, and flat bits. All are suitable for your everyday drilling needs, while many will offer something more versatile. Even if you don’t use them regularly, they are still useful to have at your disposal, as it will save you a trip to the hardware store to stock up, especially if you only need a single bit to finish a job.
Picking the right drill bit will save plenty of time and energy, and they will also ensure it does the job correctly. We cannot stress how crucial this is, as you don’t want to use an alternative drill bit and make a mistake or find the hole you make is not suitable for the job.
Materials
There are two primary drill bit materials you will encounter. These are steel and cobalt steel alloy. Drill bits that use cobalt are more durable and heat-resistant, which gives you peace of mind when using them for demanding jobs. They are also less prone to damage and therefore boast increased wear resistance that will ensure quality performance and results.
Steel bits are often referred to as titanium bits, although this is because of the coating (which we’ll get to in a minute). These bits are not as durable as their cobalt steel alloy counterparts, but they are still useful for softer materials. However, it is vital to know which materials they are not compatible with, such as stainless steel, as this could cause severe damage to the bit and ruin your project before you have even gotten started.
Coatings
The most common drill bit coatings are titanium nitride and titanium carbonitride. These are used to provide better wear-resistance for regular steel drill bits to increase longevity, although it will still wear away faster than cobalt bits. Despite this, titanium coating for titanium bits is ideal for prolonged repetitive tasks and they can cut through some metals, wood, and plastic.
Another coating you are likely to come across is Black and Gold Oxide. This coating doesn’t deposit on the surface, keeping the area clean, and it is not so thick that it affects the quality. Such a design is especially useful for more precise drilling needs, as you have to ensure your small drill hole is the perfect size to guarantee exceptional and trustworthy results.
Numbers In The Set
You might expect that the more numbers in the set the better, but this isn’t always the case. While it might seem convenient to have as many drill bits as possible and include a broad range of bit styles, including those for a brad point drill, twist drill, it can confuse novices and even be a waste of money.
If you only use a few drill bits, such as those with split point tips or for a hex shank drill, you don’t need a comprehensive number of drill bits. Instead, it is better value for money to only purchase the number of drill bits you can envisage using, especially at first. However, if you’re a professional craftsperson, you may need an extensive set to accommodate the range of jobs you have.
Size Specs
The most common size specifications you will find when searching for drill bits will be in fractional measures. The smallest will be 1/64-inches, while the biggest will be 1/2-inch or 3/4-inch, depending on the style and brand. Despite this, there are specialized drill bits that will provide a broader range, and these are the best choice for professionals.
Much like the number of bits in the set, you are unlikely to need everything, but approaching it with a more the merrier attitude can significantly increase your success and scope when performing DIY projects. Again, novices are best off looking for the standard size spec range, but professionals may want to increase their potential by getting as wide of a range as they can to maximize the opportunity for getting a job done the first time.
Drilling Material
Choosing the right bit for the right drilling material guarantees a straightforward and successful project. For example, a masonry drill bit is best for drilling brick. Likewise, twist bits are best for regular steel, while cobalt steel bits are better for hardened metals, including stainless steel and cast iron.
Ideally, you want a drill bit set that includes as many drill bit types as possible. Most sets will come with enough variety to drill metal and wood, but you may need a specialized set, such as those in a hex shank style that will fit securely in your drill driver. Even professionals who typically only work with a single drilling material can benefit from purchasing a set with some variety that will also include driver bits, as you never know what you might encounter while on the job.
Drill Bit FAQ
Q: Is cobalt or titanium drill bits better?
Cobalt and titanium drill bits are both popular styles for professionals and hobbyists. However, there are several differences between them, and this can help you determine which type of better for your needs.
The primary difference is the material. As the names suggest, a cobalt drill bit is made from a combination of cobalt and steel alloy. Conversely, titanium drill bits are not made only from titanium, but instead from steel. They are then coated with titanium carbonitride or just titanium nitride.
This is not the only difference, however. The titanium coating for drill bits will wear over time, exposing the steel, and affect the impact and heat resistance. Cobalt bits are more durable, as they have been designed specifically for heavy use. Although they may cost slightly more, the durability can represent better value for money overall.
Despite this, you also need to consider the material you are working with. Titanium drill bits are better for soft materials, such as wood and plastic, and softer metals. Cobalt bits provide heavy-duty performance and are suitable for cast iron or similarly tough metals. With this in mind, neither drill bit is better, but there are styles that are more suitable than others depending on the material and scope of the job.
Q: What are the best bits for drilling steel?
While there is a range of materials, one of the most common is steel. We've already highlighted that cobalt is best for cast iron and robust metals. As stainless or hardened steel can fall into this robust category, cobalt drill bits are arguably the best types for steel.
But it's not enough to just say so. We need to understand why cobalt drill bits are ideal for steel. The angle of the drill bit plays a significant part in making these bits suitable for drilling steel. You'll need bits with 135-degree split points as this will give you a consistent drilling speed that will glide easily through the steel.
If you want to make things easier, you can add some oil to the metal which will keep the bit cool and prevent heating issues. A wooden block placed underneath the steel is also useful, as this will prevent damage to the surface below. While cobalt bits are highly durable, there is still a risk of dulling the end if you are not careful. If you do this accidentally, you can still sharpen the bit end to get it back to the ideal sharpness and ensure exceptional efficiency when drilling steel.
Q: Are drill bits interchangeable?
Interchangeable drill bits sound like a no-brainer. Surely manufacturers and brands would want their drill bits made so they will fit in as many power tools as possible. Of course, it’s never that simple, and not all drill bits are interchangeable. While disappointing, it's vital to know this before you tear down the house and start anew, only to find your 1/16-inch drill bit won’t fit in your power drill.
It can appear confusing, but it need not be. As long as you know the size of your drill shaft, you can choose the right drill bit size to ensure seamless changing and allow you to cover as many jobs around the house without investing in a new tool.
A drill shaft that measures 1/2-inch size will accept drill bits up to 1/2-inch. Likewise, shafts measuring 3/8-inch are only suitable for bits of the same size or smaller. This sounds simple enough, but there are further complications. For example, hex-shanked bits are not compatible with an impact driver, although they will fit in a regular drill.
You should also consider which sizes and types are suitable for the material you're using, as not all drill bits are interchangeable with all materials. Brad-point bits are suitable for metal, wood, and plastic, for example, but they may not be suitable for brick or concrete, which may require a heavy-duty drill bit to fit the drill driver.