![]() Let’s take a look at the hardness of each type of drill bit, as well as some of the things to keep in mind when choosing between carbide and cobalt drill bits.Ĭontact Us What’s the hardest type of drill bit? Longer drill bits can be more brittle and break easily, even if they’re made out of a strong material. The type of drill bit that you need depends on several factors, including the material that you’re cutting, but also the length of drill bit that you need. They can cut through concrete, masonry, tile, and more. They’re commonly used in industrial applications due to their superior strength. Carbide drill bits are often made out of steel with a carbide tip. Then there’s carbide, which in this case is actually tungsten carbide and is a compound of tungsten and carbon. Titanium drill bits are usually made out of steel with a titanium coating, so they aren’t as strong as cobalt drill bits, and are liable to lose their coating over time. However, while high-speed steel is capable of many types of maintenance tasks, it isn’t suitable for more industrial uses, which is where other materials come in.Ĭobalt drill bits are made with a steel alloy containing 5-8% cobalt, so they can be used to cut into steel and other hard metals like cast iron. HSS drill bits cut faster than other types of steel, which is where they get their name. High-speed steel (HSS) is commonly used in drill bits and power saw blades because it’s affordable and capable of cutting through wood, plastic, and soft steel. Some drill bits are tipped or coated with a second material to make them stronger or more resistant to rust. ![]() Many drill bits aren’t made of a single element, but are made out of a steel alloy. Understanding the advantages and applications of each drill bit type can help ensure the best results for your drilling project.First, we need to understand how drill bits are actually constructed. Carbide drills are ideal for precision drilling in harder materials, cobalt drills are suitable for drilling through tough and hard materials, HSS drills are versatile and affordable, and Silver and Deming drills are used for larger diameter holes in various materials. Silver and Deming drills are available in both cobalt and HSS materials.Ĭhoosing the right drill bit depends on the specific application and material being drilled. They are often used in industrial applications that require large-diameter holes in materials such as steel, aluminum, and wood. Silver and Deming Drills: Silver and Deming drills are large diameter drills that feature a reduced shank diameter, making them compatible with standard drill chucks. HSS drills are typically less expensive than carbide and cobalt drills, making them a popular choice for DIY and hobbyist projects. They are a versatile and durable option for drilling through materials such as wood, plastic, and soft metals. HSS Drills: HSS drills (high-speed steel) are made from a steel alloy containing high amounts of tungsten, chromium, and vanadium. Cobalt drills are also more affordable than carbide drills, making them a good choice for general-purpose drilling applications where high precision and speed are not required. They are ideal for drilling through tough and hard materials such as stainless steel, cast iron, and titanium. Tighter tolerances and shorter cycle times of carbide drills ensures maximum utilization of the machineries and better quality of the parts while reducing the operational costs.Ĭobalt Drills: Cobalt drills are made from high-speed steel alloy enriched with cobalt, which makes them tough and resistant to heat. Carbide drills provide faster cutting rates, extensive tool life and unmatched dimensional and positional precision and improved finish to the surface. With that said, it is no wonder that carbide drill bits offered by us provide outstanding drilling solution for high production applications. As compared to other elements, Carbide has higher levels of resistance to heat, wear and tear along with having a long working life. Atlas Cutting Tools carries the largest selection of solid Carbide Drills in a range of sizes, shapes and styles that are manufactured in the USA using the preeminent sub micro-grain carbide materials so as to provide utmost efficiency and performance. They are ideal for drilling through harder materials such as composites, ceramics, and hardened steel. When it comes to drilling, there are many different types of drill bits available on the market, each designed to suit specific applications and materials.Ĭarbide Drills: Carbide drills are made from tungsten carbide, a very hard and durable material that can withstand high-speed drilling and maintain its sharpness for longer periods.
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