The downside of this type of drill bit is that the cobalt and steel alloy coating makes it a bit brittle. Titanium blades have a coating. Sharpening them would therefore expose the steel core, rendering them nearly useless. The differences start from the production of the bits. For most more challenging projects, you’re going to be choosing between cobalt and titanium drill bits. This titanium is essential for preventing overheating, as we discuss below. Cobalt bits was doped with 5 or 8 percent cobalt. However, the melting point isn’t as high as cobalt, so they’re often not as durable. This coating protects the metal core from the heat and dissipates it along the surface. The Milwaukee Cobalt Red Helix Drill Bits performed flawlessly. But this coating will still wear off over time even without sharpening. But if you’re working with softer materials more often, titanium drill bits will be the better option. What are cobalt drill bits used for? They’re arguably a bit more versatile than cobalt drill bits because you can use them on soft and hard materials. When you sharpen titanium drill bits, this coating comes off as well. Although I’d always advise using coolant when drilling metal, it’ll always make them last longer. It depends on what material you’re working with and what you’re trying to accomplish. They have a short lifespan. Of course, this is assuming that you have a bit of money to spend upfront. The cobalt also prevents the bit from getting too hot as it spins against other metals. Titanium aluminum nitride – greater resistance and durability. Of course, some people don’t need a durable bit that is going to last a long time. My name is Adam and I write for HealthyHandyman. You don’t have to worry about one of these blades getting very hot. Cobalt bits are not designed for general purpose use. Drill bits come in a wide range of shapes and sizes, ... Cobalt (HSCO) is considered an upgrade from HSS because it includes 5-8% Cobalt blended into the base material. When the coating is completely gone, the bit would have lost much of its heat resistance. In this article I’ll look at the differences of cobalt and titanium drill bits, including their most suitable uses. They are also made to drill through tougher materials, like metal. This makes them extremely tough and able to go through the most rigid materials out there, like cast iron. Over time, this coating will wear off. The addition of the cobalt allows for the drilling of hardened metals and also stainless steel. There are only a few situations where the material sets the bits apart. Your email address will not be published. Cobalt drill bits are made of steel and cobalt while titanium drill bits are made of high-speed steel and titanium nitride. This is because, unlike cobalt drill bits, titanium bits are only coated. While titanium drill bits wear more slowly, you can sharpen cobalt drill bits again and again. As you might imagine, this can cost you more money in the long run. However, their small differences is what makes each of them a significant impact of different projects. This makes them a better choice for softer materials because you’ll get much more use from them. Drilling with dull bits slows the process and causes overheating. If you have the funds and the patience to sharpen drill bits by yourself, we recommend going with cobalt drill bits. Cobalt drill bits can be sharpened many times over and far outlast a titanium coated drill. I consider one of the main disadvantages of titanium bits to be the fact that you can’t sharpen them. Required fields are marked *. Both kits are jobber length, include a 1/2-inch twist drill, and come in a sturdy case. They are less brittle then carbide tools but more brittle then HSS and you may break them if you’re not careful enough. One of the main advantages of cobalt bits is that you can sharpen them, allowing you to get more value for your money. As an Amazon Associate I earn from qualifying purchases. Hopefully by the end you’ll know exactly when to use each to get the most out of your next DIY project. Drill bits can be classified in two viewpoints- the size and the materials. Hopefully this article has helped you narrow down your choice of the best drill bits for your job. Two of the best materials you can turn to are cobalt and titanium. Titanium drill bits are not entirely made with titanium. Titanium Drill Bits Titanium drill bits are similar to cobalt drill bits. However, they are more durable and long-lasting than other options, including titanium. Because the cobalt is alloyed with the steel rather than just a coating, you don’t risk losing any of the enhanced material properties by sharpening the drill bit. Granted, in the long term you might spend more replacing titanium bits, but it’ll take a while to reach this point. Also, cobalt has a higher melting point than steel. Cobalt bits are specifically designed for drilling very hard, abrasive materials such as treated stainless steel, titanium and cast iron. They’re very tough bits, making them suitable when others just won’t do. Black Oxide Vs Titanium Vs Cobalt: Differences 1. The main advantage of titanium bits over high speed steel is their improved heat resistance and durability. A good set of bits can be quite expensive. However, those who drill into metal often will need to replace their titanium bits, which can add up. I have a great passion for writing about everything related to tools, home improvement, and DIY. Once it gets thin enough, it won’t do its job correctly. They can dissipate heat very quickly, even at top speeds. Cobalt Drill Bits. High-speed steel is alloyed with 5-8% cobalt to create cobalt drill bits. Hi there! The titanium alloy coating protects the steel core and keeps the bit sharper for longer. Cobalt Drill Bit. Cobalt bits have no coating at all, which differs from titanium drill bits. You can read more about the topic in my article comparing black oxide, cobalt, and titanium drill bits. Cobalt vs. Titanium Drill Bits – Which to get? Titanium Drill Bits. While you can cobalt bits in softer materials, I wouldn’t recommend using on things such as wood or plastic. Cobalt bits tend to be quite expensive. Instead, cobalt drill bits are generally made from high-speed steel which contains a certain percentage, usually 5% to 8% of cobalt. This is the hardest and most fragile material used in bit production, and bits made from it should not be used in hand drills. It contains all the information you might need for a range of types. These Drill Bits is unlike any cobalt drill bit and it composes of completely steel alloy with just a coating of Titanium. You can sharpen cobalt bits many times before they become unusable. In this article, we will be talking about two of the most poplar drill bit types, which vary from each other in terms of material. And the advantage of titanium over cobalt is the initial price. All rights reserved. By doing simple and easy tasks around your home, you can not only become proficient in skills that will come in handy in life, but you can also save money by avoiding paying someone to perform these tasks for you. It depends on whether you want to spend more money now or later. Basically, there are three types of drill bits in the market-Black Oxide Drill Bits. So, what is high-speed steel? Titanium carbonitride – the toughest alloy suitable for high mechanical stress. In general, despite their higher price, cobalt bits tend to provide pretty good value for the cost – mostly because you can use them for so long. You should save your cobalt drill bits for jobs where they out-perform less expensive alternatives. When you’re drilling metal with a metal bit, things are going to get hot. Because of this, they can often save you money in the long run. But they last longer, so you’ll save more in the long run. Both of these bits are designed to drill through metal, making them durable and tougher than most drill bits. They are not made of pure cobalt, which we will discuss in-depth shortly. This gives them a longer lifespan, which saves you money over the long-term. Using drill press will save you a lot of time, efforts and help you to avoid bit … This drill bit is made out of an alloy of titanium nitride and high-speed steel. You'll also often find me in my workshop working on some new project! The result is a drill bit capable of withstanding extremely high drilling temperatures. Basically, it’s just another type of steel. High Speed Steel & Cobalt Drills Speed and Feed Recommendations ... FEED PER REVOLUTION BY DRILL DIAMETER 1/8" 1/4" 1/2" 3/4" 1" Low Carbon Steel 1018, 12L12, 1108, 1213 ... Titanium Alloys Commercially Pure 99.0 110 - 170 90 0.0030 0.0040 0.0080 0.0100 0.0110 Titanium Alloys Just like the cobalt drill bit, this drill bit isn’t made out of titanium only. Cobalt bits are pretty easy to sharpen. Cobalt bits are quite a bit more expensive than titanium ones. They are best for professionals, though DIYers, with lots of projects, will appreciate them as well. The greater heat resistance means the drill bits will remain sharper for longer. While the differences in material are a significant difference between cobalt and titanium drill bits, in practice, you probably aren’t going to notice a huge difference. Best Cobalt Drill Bit Set – Drill Hog. If you need to drill a few holes, a titanium drill bit is likely sufficient. That is just the nature of rubbing two pieces of metal together very quickly. Various titanium alloys allow for different uses. While they’re initially cheaper, you’ll find you have to replace them more regularly than cobalt drill bits. They are also made to drill through tougher materials, like metal. They are just going to last longer and can be used with even the toughest materials. Titanium drill bits are similar to cobalt drill bits. Healthyhandyman is reader-supported. Cobalt drill bits are a mix of metals plus either 5% cobalt (M35 drill bits) or 8% cobalt (M42 drill bits). While they’re very hard they’re also very brittle and can shatter easily. Which option you choose is going to depend on how much money you have to spend upfront, how often you plan on using the bit, and what material you need to drill. How to Use a Miter Saw – Everything You Need to Know to Get Started. So which is better, cobalt or titanium? Cobalt bits have a wide range of practical uses compared to standard HSS drill bits. Despite their primary use for metal, they can also be used for softer materials. Titanium drill bits are capable of coping with heat since their titanium coatings enhance the dissipation of heat buildup more effectively compared to most drill bits, but they are quite expensive and don’t have the durability of cobalt bits. Popular for their tough design, cobalt drill bits are formed by alloying 5-8% cobalt with high-speed steel. Cobalt drill bits are a combination of a base alloy (usually steel) and a small amount of cobalt. Titanium drill bits are usually coated with titanium nitride or titanium carbonitride, which are gold and bluish-gray in color, … Yes, you can, but it will be an overkill. However, cobalt blades are made to dissipate heat. But here, the component mixtures are a bit different. This can get quite expensive if you’re not careful. Instead, they have a metal core and a titanium coating. Compared to cobalt drill bits, titanium bits have a much shorter lifespan for this very reason. 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