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All You Need to Know about Drill Bits

Last Updated: 22.01.22


Choosing the right drill bits is very important for the success of any DIY project. Although at first glance, drill bits seem to be more or less very similar, they have different shapes, sizes and they are made from different materials. All this diversity counts for something, since you need to learn a bit about each type and what they are good for, so you do not get frustrated about breaking your drill bits just because you didn’t choose the right ones for the job. Here is, in a nutshell, the most important information you need to know about drill bits.

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HSS bits for everyday use

HSS stands for High Speed Steel and HSS bits are the ones you should go for everyday use. They are multipurpose bits and they serve in many different situations. This means that your tool box should not lack in HSS bits. They are good for drilling through various materials, such as wood, metal, plastic and many others. Because they are made of a special type of steel, they can withstand higher temperature, hence their versatility.


Titanium bits for extended use

In case you are looking for a more durable option, you should go for titanium nitrite HSS bits. Besides the core made of a special type of steel, these ones are coated with titanium nitrate. The latter prolongs their lifespan, and they can be used three times longer than regular HSS bits, as the ones mentioned above. You can use these bits to drill through metal, plastic, wood and other types of materials, with great results.


Cobalt bits for tougher materials

Cobalt HSS bits are a great choice if you are planning to work with tougher materials, such as stainless steel, cast iron, bronze or cast steel. They are more resistant to heat than regular HSS bits, which is why they are indicated for project involving tougher metals. Also, if you need to drill holes through weld seams, you will find cobalt bits to be the best choice for your project. Because of the cobalt layer, the bits are more resistant to abrasion and they are tougher than others.

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Reduced shank bits for larger chucks

It is important to know what kind of bits you should use for each of your projects. For instance, reduced shank HSS bits are your best bet if you intend to drill holes with chucks of 3/8 inches or larger. These bits are hardened to resist more to wear and tear, and they are great for drilling through all kinds of materials, including wood, steel and plastic.


Rivet bits for rivets

Go for special HSS rivet bits, if you intend to drill holes for rivets. You will be able to tell them apart from the rest by their side flutes. What they do best is to drill shallow holes through thin sheets of metal, so you can place rivets in them afterwards. Keep in mind to make slightly larger holes than the rivets you intend to use, in order to avoid metal fatigue.