If discussing power tools Drill bits are an important feature. The most durable drill bits are cobalt and those coated with titanium. There are a few notable differences between cobalt and titanium drill bits. These can make a difference for your project.
It’s important to know for your impact driver what is the right drill bit for the job.
• Cobalt Drill Bits
Cobalt drill bits are made to last long. They’re produced by a mixture of cobalt and steel. Drill bits are available with different concentrations of cobalt. An M35 grade cobalt drill bit set contains 5% cobalt. Whereas M42 grade cobalt drill bits contain 8% cobalt. A high amount of cobalt makes drill a bit more brittle, but more heat resistant.
Cobalt drill bits are more expensive, but they offer good value for money. Cobalt bits can be sharpened, which means they can be used extensively. They’re also made tough, meaning they will not quickly fade out. They’re golden in color, making them easy to spot amongst your tools.
They’re also versatile, suitable for commercial use and engineering
As well as for home use. They can be used on materials, such as stainless steel and cast iron.
They can cope with up to 1,100 degrees Fahrenheit. This means it can withstand spinning against other metals without being damaged.
They can be used with softer materials, but with caution. For example, if you’re using cobalt drill bits on wood, you run the risk of splitting the wood. This is because cobalt drill bits do not have a brad (a sharp piece on the end that stops the drill bit from slipping). You can split or damage your project if you use a drill bit that is too tough.
• Titanium Drill Bits
Titanium drill bits come in different varieties. They are not actually made of titanium – their core is steel. They’re actually coated in different types of titanium. Titanium Nitride coating (TiN) is durable and tough. It is also able to withstand high temperatures.
Titanium aluminum nitride is another type of coating. TiAIN can extend the life of a tool by four or five times, making it an upgrade from TiN.
TiCN is very tough. It works well in machines that encounter high mechanical stresses. It can be used with adhesive and abrasive materials.
Titanium drill bits are heat resistant up to 1500F. The coating acts as a barrier between other types of metal. They are tough and able to drill into hard materials. The coating makes them heavy-duty, durable, lasting longer than a standard drill bit.
They work well with harder types of wood. They can also be used on plastic and PVC. They work very well on steel, copper, brass, or aluminum materials, too. They work well in metal cutting machines, drilling precise holes.
Yet, they will begin to lose their coating if sharpened, you lose the benefit of the coating over time. This means that, in the long run, you may end up having to replace titanium drill bits much more quickly.
• THE DIFFERENCES BETWEEN COBALT AND TITANIUM BITS?
Cobalt and titanium drill bits have various similarities. They can even be used for many of the same applications. But their slight differences are what can make a major impact on your project.
The differences emerge from the way these drill bits are made. Cobalt and titanium don’t behave quite the same. Cobalt and titanium coatings make drill bits behave differently from each other.
Titanium drill bits are generally coated with TiN or TiCN. The coating is to boost the strength of the drill bit, while allowing it to resist wear and tear, even at high speeds.
Cobalt bits do not have a coating. Instead, they’re produced with a mixture of steel alloy and cobalt. The cobalt is used to increase the strength of the bit. It also keeps the bit from getting too hot.
The significant differences between a cobalt and titanium drill bit:
Both cobalt and titanium drill bits do a great job dissipating heat. Both save your materials or bits from damage.
Cobalt dissipates heat over the contact surface. Which allows it to resist heat at high speeds.
Titanium coating works as a barrier between the steel bit and the work surface. Titanium works even better than cobalt at resisting heat if the coating is undamaged.
Prices vary depending on the manufacturers of the bits. You have to pay more for cobalt drill bits than titanium. Cobalt bits are more durable, so you may pay more for them, but you’ll likely get an extended lifespan from them.
Both cobalt and titanium drill bits are capable to work with almost all other materials. Titanium and cobalt both have materials that they work better with than others.
The titanium drill bit is a better choice for soft materials, like soft metals, wood, and plastic. The type of titanium coating also makes a difference. Titanium carbonitride coating can handle tougher materials than titanium nitride coating.
Cobalt drill bits are excellent for tough materials, like cast iron and other metals.
• Advantages of using the Cobalt Drill Bit
There are a lot of advantages that make the cobalt drill bit outclass most bits.
Cobalt has higher durability than most bits. It allows you to sharpen it plenty of time before it breaks. It is an incredible advantage to avoid investing too much money buying new ones every time.
Using the cobalt drill bits for working on soft materials might be a little bit too much. It is a relief to know you have them available to work through as many materials as possible.
In the end, these bits are high-priced items, and you may as well use it as regularly as possible.
· Higher Resistance
There aren’t many drill bits that can match the cobalt bit’s efficiency while working on hard metals. Dealing with stainless steel or cast iron is not an issue for this type of bits.
• Advantages of Using the Titanium Drill Bits
· Lower Price
The titanium drill bits come with a lower price than the cobalt bits. It is an advantage for people who are tight on budget.
The low price makes it possible to dispose of them and get new bits when they do not function properly anymore.
· Excellent Bit for Soft Materials
If you’re working on soft materials, like soft metals or wood, the titanium drill bit is what you need. It may not have resistance to harder materials, but that doesn’t highlight it is not efficient.
The titanium drill bit is capable of piercing through most of the materials.
· Lasts Longer than Regular Bits
Titanium bits may not match the cobalt bit’s longevity, but they’re still better than regular drill bits. When it comes to durability, the titanium bits come in the second-best position.
• Disadvantages of Cobalt Drill Bits:-
Not all good comes without bad, and the main disadvantage of the cobalt drill bit is its cost.
The high price keeps the user from using them as regularly. If they get damaged, replacing them may burn a hole in the pocket.
To get the best out of cobalt drill bit, you’ll need to invest in a good sharpening tool. There’s no point in throwing the cobalt bit away once it gets dull. Instead, you must re-sharpen it as much as possible.
• Disadvantages of Titanium Drill Bits:-
A Titanium bit is a reliable tool until the coating expires. After the coating wears off, the bit remains another regular high-speed steel tool.
Another disadvantage is that these bits are not good for hard abrasive metals. Stainless steel and cast iron among others will wear off the bit’s coating.
Which drill bit is better for you, depends on what materials you’re going to be drilling shortly? If you will be working with hard metals, like cast iron and stainless steel then cobalt bit is the bit for you. Its superior durability and the ability to sharpen the bit makes it the right choice. If you’re going to be working with softer metals and wood, then you won’t go wrong with a titanium drill bit.
If you’re looking towards durability, you’ll be better off getting a cobalt drill bit. You need to keep in mind that the price of a bit sharpener puts up the price. You can buy titanium drills buts for a far lower price. If a price is an important factor, then titanium drill bits will serve the purpose.