If you work with a wide variety of materials, you probably want a set of cobalt bits. While titanium is a pretty hard material, titanium drill bits are only coated with a thin layer of titanium nitride, which erodes quickly. Cobalt Drill Bits. Titanium drill bits have a wide range of uses over standard HSS bits. 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. This titanium is essential for preventing overheating, as we discuss below. One of the main advantages of cobalt bits is that you can sharpen them, allowing you to get more value for your money. Titanium drill bits are also good in metal cutting machines because they can be used to drill very precise holes. Their better quality materials and ability to be sharpened means they’ll last you a lot longer than a standard HSS drill bit. The result is a drill bit capable of withstanding extremely high drilling temperatures. Healthyhandyman is reader-supported. You’ll see a wide range of different drill bits out there. But if you’re working with softer materials more often, titanium drill bits will be the better option. Can I use cobalt drill bits with wood? Titanium carbonitride – the toughest alloy suitable for high mechanical stress. Yes, you can, but it will be an overkill. To begin with, cobalt has a high resistance to massive heat. Two of the best materials you can turn to are cobalt and titanium. Once it gets thin enough, it won’t do its job correctly. Titanium Drill Bits. They are less brittle then carbide tools but more brittle then HSS and you may break them if you’re not careful enough. But they last longer, so you’ll save more in the long run. Out of the three, cobalt drill bits are the hardest. The addition of the cobalt allows for the drilling of hardened metals and also stainless steel. They’re most commonly used to cut through hardened materials that steel alone would struggle with. When the coating is completely gone, the bit would have lost much of its heat resistance. Learn more. Cobalt and titanium drill bits have a few things in common and in most cases, are used for similar applications. Hopefully this article has helped you narrow down your choice of the best drill bits for your job. This is a problem when you’re drilling metal since metal-on-metal can get very hot, very fast. But here, the component mixtures are a bit different. Titanium blades have a coating. This allows you to work on harder materials, like stainless steel and cast iron, without damaging your equipment. Cobalt is the pricier of the two. However there are plenty of pros and cons of cobalt vs. titanium drill bits. This can get quite expensive if you’re not careful. The cobalt also prevents the bit from getting too hot as it spins against other metals. Using drill press will save you a lot of time, efforts and help you to avoid bit … Manufacturers usually add between 5 and 7% cobalt, but this varies by brand. You can sharpen cobalt bits many times before they become unusable. 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. Can’t be sharpened, meaning you’ll have to replace them once coating wears off. twist bits: a $2.75 high-speed steel bit, a $6 “black oxide” bit, a $7 cobalt bit and a $9.50 titanium bit. Titanium drill bits can drill through har… This will happen much faster if you’re only using the bits on hard materials. These Drill Bits is unlike any cobalt drill bit and it composes of completely steel alloy with just a coating of Titanium. Titanium nitride – high temperature resistance. Both kits are jobber length, include a 1/2-inch twist drill, and come in a sturdy case. Sharpening them would therefore expose the steel core, rendering them nearly useless. They are very situational, and your choice will largely depend on what projects you’re doing. Once again, neither of these drill bits is better than the other. They are better suited for drilling metal due to high resistance to the massive heat generated when drilling through highly abrasive and/or hard materials such as treated stainless steel, titanium, and cast iron. I can drill maybe 3 holes and the bit is still comfortable enough to hold, couldn't do that with the titanium bit and it cuts cleaner and quicker. Titanium drill bits are similar to cobalt drill bits. Most drill bits out there designed for tougher materials have some design feature that is made to dissipate heat. Steel melts at around 2500 degrees F (1370 C), while cobalt melts around 2723 degrees F (1495 C). However, those who drill into metal often will need to replace their titanium bits, which can add up. You can read more about the topic in my article comparing black oxide, cobalt, and titanium drill bits. All rights reserved. Cobalt drill bits are made with a mixture of cobalt and steel alloy. The 3 types are: Using a titanium coating increases surface hardness of the cutting edge as well as reducing friction and adding corrosion protection. Less expensive than cobalt drill bits – good for home DIYers. If you have the funds and the patience to sharpen drill bits by yourself, we recommend going with cobalt drill bits. They’re arguably a bit more versatile than cobalt drill bits because you can use them on soft and hard materials. The downside of this type of drill bit is that the cobalt and steel alloy coating makes it a bit brittle. However, they are more durable and long-lasting than other options, including titanium. How to Use a Miter Saw – Everything You Need to Know to Get Started. Titanium Drill Bits Titanium drill bits are similar to cobalt drill bits. The greater heat resistance means the drill bits will remain sharper for longer. You should save your cobalt drill bits for jobs where they out-perform less expensive alternatives. In this article I’ll look at the differences of cobalt and titanium drill bits, including their most suitable uses. Cobalt drill bits are designed for cutting through all sorts of metal, including stainless steel and cast iron. 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. If you need to drill a few holes, a titanium drill bit is likely sufficient. Basic Woodworking Tools – Essential Tools for the Budding Woodworker, Your email address will not be published. Over the life of the bit, however, the extra initial cost of the cobalt drill bit evens out. I’ve covered all the important information about titanium drill bits, but here’s a summary of the pros and cons for convenience. Cobalt vs Titanium Drill Bits – 2020 Review Learning proper use of tools is a handy investment. Although I’d always advise using coolant when drilling metal, it’ll always make them last longer. Cobalt Drill Bits. © 2020 ToolToAction, All rights reserved. Compared to cobalt drill bits, titanium bits have a much shorter lifespan for this very reason. Also, I recommend taking a look at my guide for how to sharpen drill bits. Update Privacy Preferences There are also cobalt bits and high-speed bits. While their performance is fairly similar, there are applications where one is better than the other. Cobalt drill bits can be sharpened many times over and far outlast a titanium coated drill. Required fields are marked *. The differences stem from the way these drill bits are made. They are just going to last longer and can be used with even the toughest materials. They are also made to drill through tougher materials, like metal. While titanium drill bits wear more slowly, you can sharpen cobalt drill bits again and again. Over time, this coating will wear off. It contains all the information you might need for a range of types. Importantly, a higher melting point means the cutting edge is more resistant to the heat generated by cutting. There are only a few situations where the material sets the bits apart. When you sharpen titanium drill bits, this coating comes off as well. Yes, drill bits do not end with titanium and black oxide bits. Titanium drill bits are not entirely made with titanium. Popular for their tough design, cobalt drill bits are formed by alloying 5-8% cobalt with high-speed steel. This makes them extremely tough and able to go through the most rigid materials out there, like cast iron. The main advantage of titanium bits over high speed steel is their improved heat resistance and durability. 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