Cryogenic treatment is a one-time process that involves cooling the metal to cryogenic temperatures (–238 °F or below) with the help of a cryogenic liquid or gas. Then, it can be heated back up to a higher temperature and allowed to cool naturally.

Cobalt drill bits have a recognizable gold color. Although it looks like a coating, it’s not, and is the result of a “baking” process that the drill bits go through. It may wear off with use, but this won’t impact the quality of the drill bit.

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Another option is to treat your drill bits cryogenically to reduce wear and make them last longer without the need for frequent sharpening. Although cryogenic treatment is known for its use in manufacturing, including the treatment of aerospace and automotive parts, it can be used to extend the life of cutting tools as well.

Drill bits that are cryogenically treated have been shown to drill twice as many holes as drill bits that aren’t, before needing to be replaced. The treatment process changes the carbide’s microstructure, resulting in drill bits that are 7% harder.

Cobalt vs carbidedrill bits for steel

How do you know if you should use a carbide or cobalt drill bit? Although both types of drill bits have their uses, they can’t be used interchangeably, so it’s important to use the right one for the task at hand. Let’s take a look at the pros and cons of each:

Even the most high-quality drill bits are going to wear down after a while, at which point you have to decide whether it’s better to sharpen them or replace them. Due to the high cost of carbide drill bits, it’s probably worth your while to sharpen them.

This Applied Science video shows how you can do it at home with liquid nitrogen, but for best results, we recommend choosing a professional.

Carbide vs cobalt vstungsten

For softer materials and general use: Titanium drill bits are a good choice as they are less expensive and perform well for a wide range of materials.

Because they can handle temperatures as high as 1100 °F, cobalt drill bits can be used in high-heat settings. The higher the percentage of cobalt, the more heat-resistant it will be; at the same time, a higher percentage of cobalt means it will be more brittle.

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Then there’s carbide, which in this case is actually tungsten carbide and is a compound of tungsten and carbon. Carbide drill bits are often made out of steel with a carbide tip. They’re commonly used in industrial applications due to their superior strength. They can cut through concrete, masonry, tile, and more.

That’s why they’re primarily used in automated equipment, and aren’t designed for use in hand drills and other manual processes where they can snap under pressure. You’ll find them in a range of industries, such as automotive and aerospace factories, where only the hardest drill bit tips will do.

The choice between cobalt and titanium drill bits depends on the specific application and material you are working with. Here's a comparison to help you decide:

Hardness refers to the surface of the material – essentially, how easy it is to scratch or dull its surface – while brittleness refers to how easy it is to break. So while carbide drill bits are very hard, and can cut through some of the most difficult materials, they’re also brittle and can break if not used properly.

But the best drill in the world won’t be much use to you if its drill bits aren’t up to the job. No matter how powerful your drill is, what really determines its capabilities is the bit.

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CarbideDrill bits

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. Longer drill bits can be more brittle and break easily, even if they’re made out of a strong material.

Tungstencarbide vstitaniumvs cobaltdrill bits

Cobalt 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.

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We have multiple locations around the U.S., ensuring that you can get your tools treated in a timely manner. By having your carbide drill bits treated in advance, you can cut down on delays and downtime later.Contact us today to get a free quote and learn more about the process!

Carbide vs cobaltfor metal

Other tools use carbide inserts, which are often triangular or diamond in shape, and are inserted into a tool made out of another metal, such as carbon steel. The benefit of this approach is that the tool is less brittle overall, and you can rotate the carbide inserts to expose a different edge when the cutting side becomes dull.

Carbide tips can drill through hard, non-metallic materials like masonry, while full-body drill bits are primarily used in automated processes.

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In this article, we’re going to take a look at the key characteristics of a drill bit – including the metal it’s made out of, its tip, and its coating – as well as how you can use cryogenic processing to make your drill bits stronger and longer-lasting.

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TungstenCarbideDrill Bits

It might seem counter-intuitive, but carbide is both the hardest drill bit – up to five times harder than steel – as well as the most brittle. That’s because, when it comes to tools, hardness is just one of the factors that determines a material’s overall strength.

Whether you rely on carbide drill bits, inserts, cutters, end mills, or any other tool, you can increase their lifespan and reduce downtime with cryogenic treatment.

Carbide vs cobaltdrill bit

In some cases, the drill bit will be made out of a less brittle material, and only the tip will be made out of carbide. That way, you get the hardness of carbide on the drilling surface, with the stability of a less brittle material to prevent the bit from breaking.

Cobalt drill bits can be sharpened without losing their strength. They also have a relatively long lifespan, making them an affordable option despite their higher cost.

Most metal products are forged or cast at high heat, after which they must be cooled to room temperature. Traditionally, this was done by quenching them in water, but modern cryogenic techniques provide a more controlled treatment process.

First, we need to understand how drill bits are actually constructed. Many drill bits aren’t made of a single element, but are made out of a steel alloy. Some drill bits are tipped or coated with a second material to make them stronger or more resistant to rust.

If you don’t have a grinding wheel at your disposal, then it may be more cost-effective to hire a professional to do it for you. So while you can sharpen carbide drill bits yourself, it requires specific tools and you may need some training to get it right.

This is because the temperatures that your drill bits are subjected to when they’re first made has a long-term impact on the quality of the finished product.

Cobalt drill bits are ideal for when you need to drill through hard metals. They come in two grades: M35, which is made of 5% cobalt, and M42, which is made of 8% cobalt.

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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.

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. HSS drill bits cut faster than other types of steel, which is where they get their name.

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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.

Carbide vs cobaltreddit

However, you can’t simply use any sharpener on your carbide drill bits. You’ll need the right tool for the job, which in this case is a diamond-surface grinding wheel.

Carbide drill bits are made out of tungsten carbide, although they often contain small amounts of other materials, such as cobalt, to reduce their reactivity with iron. You can usually find carbide drill bits in one of two forms: carbide-tipped or full-body.

CTP Cryogenics has over 30 years of experience in the field of thermal processing. We work with carbide tools of all kinds, using a proprietary treatment process that’s tailored to your specific use case and industry.

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They stay sharper longer than cobalt drill bits do, and they have a higher cutting speed. They can also handle higher temperatures.

Drills are one of the most important items in any toolkit. Depending on your industry or product, your drills need to be able to cut holes in wood, plastic, metal, and more – all while adhering to precise measurements and quality standards.

Resharpening: Once the coating wears off, the drill bit loses its titanium advantage and performs like a standard HSS bit.

Since each tool has a specific concentration of tungsten carbide, it may take multiple tries to find the right treatment process for your drill bits.

Carbide inserts can be used to work with cast iron and steel, as well as bronze, copper, aluminum, and other hard or abrasive materials.

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