Best DIY toolkits for 2020 - h size drill bit
Milwaukee tools are often best bought as kits. For the most part, I find that the batteries become much more affordable when you get them with some tools. As such, the best Milwaukee drill set could fall into the M12 or M18 category depending on what you need. I also see a difference between a simple 2-tool kit and what I define as a “starter” kit that includes enough tools to launch your career (or perhaps even switch platforms!).
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Through hands-on testing, we found a number of drill bit sets that rise above the competition and help make holes in myriad metals. Some of the results were truly surprising. For those of you working on a project that requires drilling through metal, read on to learn about the factors to consider before shopping for the best drill bits for metal.
Drill bit coatings affect how a drill bit operates. Most metal drill bits are usually coated with titanium or black oxide. This coating is designed to reduce friction, which keeps the drill bit from heating up and eventually breaking. Because the coating reduces friction, it can also help increase drill speed.
We tested these Top Picks products to ensure that they had what it takes for drilling metal. To qualify as one of the best drill bits for metal, the bit needed to perform well in the metal that it’s designed to drill. Bits also need to be durable and able to withstand the friction and heat produced when drilling through metal. The following recommendations are all at the top of their class for metal drilling, and one (or more) may be an asset to your tool collection.
Ever check out a “review” site and you can’t tell if they actually tested the tools or if they’re just “recommending” the Amazon top sellers?
To check the drilling speed of each tool, Pro Tool Reviews puts them through a series of relevant tests at both high and low speeds. Timed tests help us measure the RPM of a bit under load. This reveals how much of its no-load speed it maintains when truly engaged. The higher the RPMs a drill maintains, the faster the bit moves through the material.
My favorite kit is the M18 6-tool combo kit (2696-26). It includes a suite of solid M18 starter tools. You get a hammer drill, impact driver, Full-size Sawzall, 6-1/2-inch circular saw, angle grinder, and LED work light. The price is no joke at $749, but you won’t need much else (except maybe a mid-torque impact wrench) to get up and running. Need more power? You can easily upgrade any of these tools over time to their M18 FUEL counterparts.
If you want enough power to tackle up to 1/4-inch holes in block or brick, but don’t plan on spending all day with your drill, this M12 series tool saves some serious weight. I know several MRO, HVAC, and electrical Pros who choose this line for their primary tools. At $179 for the 2-battery kit, you get a lot of power in a compact package.
Expect to pay around $299 for the kit. Lastly, I also like the 5-year warranty—which you’ll see on all my recommended Milwaukee drills.
The idea of a compact drill centers around having a reliable tool that can do 80% of the work of a flagship product. Along the way, you save some weight—and certainly some money. With that definition, I heartily recommend the Milwaukee M18 compact brushless 1/2-inch hammer drill.
Based on our testing, the 4th-generation Milwaukee 2904 hammer drill steals the show for the best Milwaukee drill overall. My pick comes as a result of several factors. First, it saves $50 over the 2906 with Milwaukee ONE-KEY technology. If you want One-Key, you can certainly grab the more expensive model.
Additionally, the ergonomics and handle design of a drill can greatly impact user comfort, and it’s a good idea to try holding different drills in-store to find the one that feels best for you. Most of us prefer certain brands’ handles over others. My advice? See what works best for you.
These bits are made from high-speed steel for strength, and they feature a titanium coating for reducing friction and increasing durability. The kit comes with a carrying case with a foam insert with recesses for each bit and a spring-loaded center punch for marking the holes’ locations.
The Bosch bits’ tapered tips can quickly penetrate the metal, balance the bit, and produce a clean, even hole. The set includes 21 bits ranging in size from 1/16 inch to ½ inch and is packaged in a plastic storage case.
I chose the 3497-22 M12 FUEL 2-tool combo kit as our best Milwaukee M12 drill kit. For starters, you can get larger kits—but they all have flaws. Some larger kits toss in a mediocre LED light that drives up the cost while the largest kits add tools you may not need.
These bits are made for hard use. Their construction is durable, retaining an edge while drilling through thick ¼-inch steel. The no-spin shank prevented the chuck from slipping, boring right through the metal without stopping. They also stayed cool while drilling.
Performance is my top priority when evaluating drills. Pro Tool Reviews tests in various materials, including concrete, wood, and metal, to gauge a drill’s performance in light and heavy-duty tasks. However, every drill isn’t tested for every possible task, as some drills are not suitable for certain jobs.
Sometimes you don’t need the maximum amount of power. If saving money without sacrificing quality makes sense to you, check out the Milwaukee 2494-22 drill/impact driver kit. This kit gives you a twofer, netting you both drilling and driving capabilities for less than $120. For homeowners, you get enough power, runtime, and speed to tackle most household applications. It also costs significantly less than a single flagship M18 FUEL drill kit—and you get two great tools.
Some shank designs are more conducive to drilling through metal than others. Most shanks for this type of drill bit are either no spin or hex.
One of the best features of the Irwin 29-piece set is the range of sizes available. Each bit increases by 1/64-inch increments between 1/16 and ½ inch, meaning there is a bit for almost any size hole.
Most drill bits are made from HHS, cobalt, or carbide. A bit’s material can influence how effective it is at drilling through different kinds of metals.
Folks who need to drill a few holes in some metal surfaces but don’t want to break the bank on a set of expensive drill bits may prefer the DeWalt DWA1184 black and gold drill bit set. This set of all-purpose bits can drill wood, plastic, or metal and features 135-degree split-point tips to help prevent walking.
The Milwaukee 2904-20 brushless hammer drill has 1,400 inch-pounds of torque. More importantly, however, it optimizes that torque for speed. This is one of only a few drills that can drive a 2-9/16″ wood boring bit at High speed. That means you gain some serious productivity during rough-ins. It also now features AutoStop technology. That stops the drill during a bind-up event before it damages your wrist.
While we don’t have an immediate use for a dozen ¼-inch drill bits, we do like that a full-time shop can order enough bits from Drill Hulk to replace their most commonly used sizes without purchasing a whole kit that contains unneeded sizes. However, we did notice that these bits can walk slightly, despite the 135-degree split point.
For drilling in harder metals, check out the Milwaukee Red Helix Cobalt Drill Bits. These bits drill faster than standard 135° split point cobalt bits and feature a Quadedge Tip that reduces heat. Since you can sharpen these bits, they can last a good long time. We LOVE these bits…but hate the case they come in (they are a tad difficult to remove).
The Milwaukee 3697-22 M18 FUEL combo kit makes for such a great deal I can’t recommend it enough. This 2-tool kit includes the latest Gen4 M18 Fuel hammer drill and Milwaukee M18 impact driver. It also tosses in a pair of XC5.0 Ah battery packs and an M18/M12 Rapid Charger.
It’s not a bad idea to clean drill bits after using them. After drilling, wipe away any residue on the bit with a soft cloth and then rub a bit of cutting fluid on it before storing it.
These are great bits, but we found they were better for enlarging holes than actually drilling them (at least when it comes to metal). If we started with another bit to drill the initial hole, we could quickly work up to the desired size with the Comoware (the tips of the bits themselves just didn’t seem sharp enough for metal). We liked that there are so many sizes in one kit, and the spring-loaded center punch worked well for locating the bit.
When it comes to enlarging hotels in metal materials, a step bit like the ones in this five-piece kit from Comoware is the tool for the job. This kit features five different sets of bits, each with a series of steps, totaling 50 sizes from one kit. Sizes range from ⅛-inch to 1 ⅜-inch wide.
This kit comes with 14 bits from 1/16 inch to ½ inch, all of which are made of high-speed steel. The smaller bits have rounded shanks while the larger bits have no-spin shanks. Each bit features the brand’s “black and gold” coating designed to keep them from rusting. Everything stores away in a see-through case, helping to keep the bits organized and easy to find.
Positioned in the middle of the drill and hammer drill lineup, the 3602 delivers up to 550 in-lbs of torque and 1700 RPM. The 1/2-inch metal chuck still delivers the expected Milwaukee quality and the brushless motor gives you excellent runtime and durability.
Each class of drill has a different amount of muscle. You shouldn’t expect a compact drill to do what a heavy-duty one can. Pro Tool Reviews ensures each bit type and size are within the design intent of the drill being tested. That means smaller self-feed and spade bits for tools not rated the same as flagship models. We also vary the type of fasteners we drive depending on the type of drill.
When buying a cordless drill, consider your budget and try to get the most value for your money. Additionally, look for compatibility with other tools, a longer warranty, and a convenient service center. Consider where you will get new batteries or expand your tool collection. For professionals, having a good dealer relationship can be beneficial.
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The comfort of each drill’s grip is subjective based on size and does not affect the score. I hold and use each tool with a bare hand to see if there are any uncomfortable seams or other oddities that might affect every user regardless of preferences.
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While we’re not huge fans of general-purpose bits typically, especially when it comes to drilling metal, these Bosch bits were excellent. They didn’t walk when starting a hole, and they removed long shavings of metal, proving they remained sharp while drilling. We were so shocked that these bits were this good that we kept drilling with them to see if it was a fluke. They drilled holes faster than the other bits in the test, which really surprised us.
Avid metalworkers looking for a quality drill bit set for their metal projects may want to upgrade to the Irwin 29-Piece cobalt-alloy steel drill bits set. This set includes 29 drill bits from a 1/16-inch bit to a ½-inch bit, with bits larger than ⅜-inch wide having reduced-size shanks so they can fit smaller chucks.
There’s only one good way to test drill bits for metal: We needed to put some holes in some metal! We grabbed some scraps of metal off our welding cart, chucked some bits into our drill, and started drilling.
The best way to drill through thick metals is to use a drill press rather than a handheld drill—a press best achieves a clean, smooth hole. Be sure to drill slowly and use cutting fluid to lubricate the bit, too. Let the bit cool down every few minutes to keep it from overheating and breaking.
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For wood drilling, I like the Milwaukee Shockwave Titanium Nitride bits. The titanium coats these bits to reduce friction. The advantage is they fly through wood. The downside is you eventually wear away the coating and don’t benefit (as much) from sharpening these when they go dull. These bits also feature a hex shank to use with an impact driver.
I honestly love that Milwaukee has a solid 12V offering in this category. With that said, I have two great recommendations depending on the power requirements and applications you have in mind.
If you don’t need—and don’t want to pay for—the absolute best Milwaukee offers, you can get a ton of value and performance from this hammer drill. It may be all you need if you work in the MEP, MRO, and similar disciplines. Grab the tool for just $149 or the kit for $219.
I generally prefer the most compact and lightweight drills possible. They are easier to maneuver in tight spaces and they cause less fatigue when working overhead. I prefer the smallest and lightest drill that can effectively complete a task. If a drill weighing 4 pounds represents 100% power and a second drill weighs 3 pounds with 90% of that power, I’ll take door #2 every time.
Whether you’re just getting into metalwork or you want to expand that drill bit set, adding metal drilling bits to an arsenal of tools is a good investment. If drilling through metal is a new endeavor, there may be some questions that need answering.
Additionally, the PTR Drill Test Track simulates real-world conditions and assesses a drill’s control and ability to handle medium and heavy loads. The test concludes when the drill completes the final, heavy-load task, taking into account any bit changes or human errors.
While many of the newest flagship cordless drills can handle some mixing tasks, I still use a dedicated mixing drill. The best Milwaukee drill for mixing is the 2810 M18 FUEL mud mixer. This tool runs just $219 and delivers the power needed to mix tough materials including concrete and mortar. Paint? Merely a trifle!
It depends on what kind of metal you’re drilling through. Titanium bits are suitable for drilling through soft metals such as aluminum, while cobalt bits are better suited for drilling through hard metals like cast iron.
Add a drop or two of lubricating oil to the bit and then grab the broken end of its shank with a pair of pliers. Twist counterclockwise to remove the bit.
To be 100 percent upfront, we have never liked DeWalt drill bits. We have found that they’re usually relatively low quality and pretty much “throwaways.” But this particular kit was incredible when it came to drilling metal. They didn’t walk at all, and they cut long, continuous, spiraled shavings—the sign of a sharp bit. The rounded shanks on the smaller bits did spin a little, but the no-spin shanks on the larger bits were great. Each bit stayed cool with a spritz of lubricant and remained sharp throughout the test. And, surprisingly, this budget kit drills through wood faster than some of the much more expensive drill bits in the test.
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Bits that drill through metal are further classified by the types of metal they puncture. For example, some bits are capable of drilling through ferrous metals, such as cast iron, and others through nonferrous metals, such as copper and tin.
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The result is information you can trust because of the editorial, scientific, and real-world professional experience we collectively utilize every time we pick up and test a tool.
The real-world application for this test uses a timed test with a tough application, like driving long ledger screws into stacked OSB. We also test soft torque using an inline torque meter while driving 1/2-inch lag bolts into wood.
DIYers and pros who go through a lot of ¼-inch drill bits for their heavy-duty metalworking projects may benefit from the Drill Hulk’s ¼-inch cobalt steel set. This 12-pack of bits features jobber-style lengths, which means their lengths are relatively long compared to their diameters. They’re made from durable cobalt high-speed steel, feature 135-degree split points for drilling through metal without walking, and have a no-spin shank to prevent them from spinning in the chuck.
We did dislike that the smaller bits have rounded shanks, as they can be a pain, particularly when the bit is about to drill all the way through the material. However, the large bits have no-spin shanks and do a great job of staying in place. The tips stayed sharp making hole after hole, and they remained cool to the touch during use (while using cutting oil).
Aside from the $119 kit price, I named this my best Milwaukee drill for the money primarily because of its immense value. One of the most compact drills in the Milwaukee M12 lineup, it also includes that impact driver for more flexibility and capabilities. While it features a brushed motor, you still get great performance, a full metal chuck, and tools that weigh around 2 pounds before you add one of the included 1.5 Ah batteries.
When looking for a set of high-quality drill bits for metal, you may want to consider the Irwin 63137 set of bits. Made from cobalt high-speed steel, they’re designed specifically for hardened steel. They have 135-degree split-point tips, helping them to resist walking when starting a hole. They also resist wear and heat, making them a solid choice for drilling through metal materials. Bit sizes range from 1/16 to ½ inch wide, and the bits larger than ⅜ inch wide have reduced shanks.
These bits did a fine job of drilling through our test materials. They didn’t walk when we started the holes, and they bored through the metal at a reasonable pace. The case itself has a cheap plastic tab to keep it shut, but otherwise, it does a good job of keeping these bits safe and organized. They stayed cool while drilling and retained their sharp edges even after several holes. Our biggest complaint is the rounded shank, as the small bits did spin a bit in the chuck.
Look for the words “metal drilling bit” on the package, followed by a list of metals the bit is designed to puncture. Here are a few additional tips that will help drill smoother holes and keep bits in tip-top shape.
If you need a corded drill—perhaps for repetitive steel drilling, the Milwaukee 1107-6 corded 1/2″ D-handle drill. This 7A tool provides up to 500 RPM and can easily handle up to 1/2-inch holes in steel.
When he's not playing with the latest power tool, Clint DeBoer enjoys life as a husband, father, and is an avid reader—especially the Bible. He loves Jesus, has a degree in recording engineering, and has been involved in multimedia and/or online publishing in one form or another since 1992.
With a top speed of 550 RPM, this mixer can mix up to fifteen 5-gallon buckets on a single 5Ah RedLithium battery. Cut the cord and save your standard drill—pick up this tool if you frequently mix materials.
A drill doesn’t do much good without the proper bits. I can make some recommendations on the best Milwaukee drill bits, but it really depends on the material you intend to drill.
Several tools let us test torque. With drills, an inline torque device measures the maximum soft torque a drill can produce when driving a 1/2-inch lag bolt into laminated OSB. Hands-on testing lets us evaluate the drills in multiple gears to determine which models produce the most torque at higher speeds.
Those looking for an all-around capable set of drill bits may want to check out the Bosch black oxide metal drill bit set. Manufactured from high-speed steel and coated in black oxide, Bosch drill bits can withstand friction and heat so you can drill continuously without the bits heating up.
The shank is the nondrilling end of the bit that fits into the drill’s mandrel or “chuck.” For hex shank bits, the shank size of the bit chosen (typically ¼ inch, ⅜ inch, or ½ inch wide) should match the chuck size of the drill.
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These tools have everything except One-Key, but for most Pros, I think the blend of power and compactness matters most. For around $399 for the kit, you can spend less, but electricians, plumbers, and general contractors should find it a great value. The 5-year tool warranty also helps seal the deal.
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Most drill bits fit both standard corded and cordless drills. While these small pieces of metal all look pretty similar, each type of drill bit is designed to make holes in specific materials—including wood, plastic, and metal—but won’t work as well on other materials.
The bits didn’t cut quite as fast as some of the other drill bits in the test, but they did retain their edge nicely. They also didn’t walk at all when starting the bit, and the tap size chart inside the kit could definitely come in handy. What we didn’t like was the fact that every bit, despite its size, features a rounded shank. But the sturdy case with a spring-loaded latch ensures this kit stays shut, and the rubber molding on the case can prevent it from slipping off of a work surface.
Unlike the M12 2-tool kit above, I have different thoughts about the best Milwaukee M18 drill kits. The reason has to do with the application. For many Pros starting out, they need to ramp up their system quickly. I see no better way than to purchase a comprehensive Milwaukee starter tool kit. It won’t be cheap, but it gets you up to speed quickly with the tools of the trade.
Then we moved to some heavier-duty 7-gauge flat stock, again testing how each bit made it through the test. We did our best to maintain similar speeds and pressure throughout each portion of every test. Afterward, we did our best to hand sharpen each of the larger bits with a file. The bits that passed these tests were given awards based on their strengths.
Researching shank design, bit material, and bit coatings can be confusing, but fortunately, drill-bit manufacturers make shopping relatively easy for the customer. Drill bits are labeled not only by the size of the hole they’ll drill but also by the type of materials they’ll drill.
Today, drills include many features—some of which I find very helpful. While not all features are necessary, some can help you complete jobs much more quickly. I typically look for the following:
For around $229, this core tool kit gives you exactly what you need to get started. It pairs the latest 3404-20 Gen 3 hammer drill with the excellent 3453-20 Gen 3 impact driver. I hope to eventually see this kit in a Milwaukee Packout case.
Tom Scalisi has been in the trades for over two decades. He loves to share his knowledge of construction, home improvement, tools, techniques, and products with the readers of Bob Vila, This Old House, Family Handyman, and even his pest control blog.
These drill bits are made from durable cobalt-alloy high-speed steel, helping retain a sharp edge while drilling. They all fit inside the sturdy hinged case with a spring-loaded latch to keep the kit closed when not in use. The case also has a tap guide inside to help you identify which bit to use for a particular bolt or fastener.
Glenda Taylor is a BobVila.com staff writer with a background in the residential remodeling, home building, and home improvement industries. She started writing for BobVila.com in 2016 and covers a range of topics, including construction methods, code compliance, tool use, and the latest news in the housing and real estate industries.
First, we drilled into some relatively light-duty 11-gauge steel angle iron, testing a few bits from each pack. We wanted to see how well they’d retain their edge, how hot they’d get, and how long it would take them to bore a hole in the metal.
Starting small and working up, I find the Milwaukee M12 FUEL 3404 hammer drill hard to top. This M12 series hammer drill offers tons of power for its size. Milwaukee released this 3rd-generation tool in 2022, making it even more compact while not sacrificing any power. I tested this tool which puts out 400 in-lbs of torque vs the 350 in-lbs of the 2nd-gen 2504. I also like that Milwaukee Tool continued with the handy belt clip design.
The best Milwaukee cordless drills now include additional features such as AutoStop kickback control to protect you against bind-ups. I like their solid clutch settings that help when driving screws into softer materials. Their hammer drills do really well—even in harder materials like concrete and brick. Cordless drills allow for greater mobility and flexibility to work on different projects without the need for a power cord. They’re all but ubiquitous at this point.
Home improvement centers often dedicate an entire aisle to drill bits, which come in a plethora of types and sizes for drilling holes in a variety of materials. Many drill bits can pierce through more than one type of material, but not all drill bits can drill through metal without heating up and snapping in half. Labels on drill bits indicate the type of material for which they’re suited, so it’s easy enough to find ones that are designed to drill metal. Depending on the type of metal the user is drilling through, some bits suit the task better than others.
The best cordless drills, like those from Milwaukee Tool, are essential tools for both professionals and homeowners. These versatile tools let you drill holes in a variety of materials like wood, metal, composite, and even drywall. You can use them to hang pictures, run wiring and plumbing, create pilot holes, and complete other projects.
One thing that frustrates those still using corded tools is broken power cords. With the Quik-Lok system, the cord can easily detach from the tool, letting you replace it as needed in the field. This drill costs around $242; you can find it with a right angle attachment as the 3107-6 for around $349.
We’ve been in business since 2008 covering tools, writing reviews, and reporting on industry news in the construction, automotive, and lawn care industries. Our Pro reviewers work in the trades and have the skills and experience to know whether tools can perform well in the field.
Many DIYers don’t bother sharpening their bits when the cutting edges become dull and they have trouble drilling a hole, but it’s tool maintenance worth doing. You’ll get a longer life out of your drill bits if you sharpen their cutting edges with a bench grinder.
Milwaukee Tool makes a ton of drills. Between 12V and 18V, brushed and brushless, corded and cordless—you have a lot to choose from. So how do you pick? When you put your hands on and test over 50 drills a year, you get a feel for who makes the best cordless drill. This article helps you understand how each of the Milwaukee cordless drills fits into their lineup. The best Milwaukee drill for you may be the most powerful, the best value, or the most compact. It just depends on what you plan to do with the tool and what kind of work you want to accomplish.
My recommendations come after hours of torque and run-time testing and after giving the tools lots of real-world use. I recommend a different Milwaukee drill for the journeyman electrician than I do for someone just starting out in construction. Yet another drill makes sense for the homeowner who wants to use Milwaukee tools. Recommending a single tool for everyone never works. Hopefully, I can help you find the model that gives you the performance, features, ergonomics, and value you need.
Using a digital scale, the weight of the bare tool is measured along with the tool with the kitted battery installed. Occasionally, a measurement is taken with a premium battery for comparison.
Value is more than just the price of the tool. I consider the whole picture of what you get for the price you pay. That includes the performance, feature set, ergonomics, warranty, bare tool price, and kit price.