What are the 12 types of drill bits to choose for your next DIY projects? Well, there are twist drill, spade drill, counter sink drill, center drill, taper drill, reamer drill and many among others!
In the world of machinery and construction, choosing the right type of drill bit is the key to achieving maximum results in a variety of projects.
Drills are one of the most commonly used tools, however, the wide range of choice of drill bits can be confusing for you, especially if you’re a less experienced user.
Therefore, it is important to understand the different types of drill bits available and their respective functions.
Table of Contents
Types of Drill Bits
1. Twist Drill
A spiral drill, also known as a twist bit or high speed steel (HSS), is the most common type of drill bit used in a drilling machines
It can be used to make a straight hole on a variety of materials, such as wood, plastic, and metal.
The drill bitlids have sharp edges and a twisted helicopter that helps remove the dust from the drill. You can find spiral drills in a variety of required sizes, ranging from 1 mm to 25 mm.
2. Spade Drill
The spade drill, according to its name, has a unique shape that resembles a spade. The ends are flat and sharp with an angle of inclination allowing this drill bit to cut well on a flat surface.
Spade drill blades are available in varying sizes and are used to make holes with large diameters on wood or composite materials.
3. Auger Drill Bit
The auger drill bit has a long spiral shape with sharp edges. The size of the auger drill bit also varies, ranging from 6 mm to 25 mm.
The advantage of using the auger drill bit is its ability to transport the drill powder out of the hole, resulting in a clean and neat hole.
4. Countersink Drill
The next one on our list is the countersink drill, which has a sharp point with a determined bended angle that is designed to form a shallow hole on the surface of the materials.
This type of drill bit is used to hide the screw head in a drilled hole. The countersink drill bit is available in a variety of sizes and is often used on wood or metal materials.
5. Center Drill
These drills are used to make an initial hole or mark on the material that will be worked later.
The size of the drill bits varies, so you need to make sure the need first for a desired result.
These drills are specifically also often used in the machining process and the manufacture of tools.
6. Taper Drill
Then there is a taper drill, the tapered drill bit is a specialized drill bit that’s not straight, but instead gets larger or smaller in diameter towards one end.
Tapered drill bits are often used to drill pilot holes for wood screws, and they’re more effective at removing material and less likely to “wander” than straight bits.
7. Reamer Drill
The reamer drill is used to smooth and repair holes that have been made before.
So don’t worry if you want to fix a mistake in drilling some material. Just use this type of drill bit one to make sure your work is done as expected.
Other than that, the reamer drill bit is also used for enlarging already present holes to achieve a precise hole sizing.
The reamer drill bits are also available in a variety of sizes, ranging from 1.97 mm to 150 mm.
Also Read: “How to Choose Drill Bits For Your Next DIY Project!“
8. Step Reamer
Step reamer is a type of bit drill designed specifically for digging holes of different sizes accurately.
These drill blades are often used on metal or plastic materials because they can make holes according to the desired size precisely.
This type of drill bit is also available in a variety of sizes that you can easily find on the market. You can even buy them in a set that contains a range of sizes from small to large.
9. Straight Flute Drill
The straight flute drill has a sharp tip with a straight bar that leads backwards. These drills are also used to make holes with small diameter on hard materials such as metal or ceramics.
This type of straight bit drill is widely chosen because it is capable of making holes at high speeds, but still gives smooth results.
A Straight Flute Drill is designed to produce short chips in most drilling applications. Good for drilling soft and ductile, non ferrous material, such as copper and aluminum
10. Hole Saw Bits
If you want to make a hole with a larger diameter and a high accuracy, the hole drill saw drill bit is the right one to use.
This type of drill bit is shaped with sharp teeth around its outer edges to penetrate the material.
Although it can be used to cover a variety of materials, this type of one is more widely used when you want to make holes on wood.
Hole saw drill bit are available in a variety of sizes and are often used in construction work or pipe installation.
11. Carbide Drill
The carbide drill bit is basically made of the hard material which is the tungsten carbide, a chemical compound containing tungsten and carbon.
These drill bits are designed to be used on very hard materials such as ceramics, stones, or stainless steel.
The advantages of using the carbide drill bits is their high durability and precision cutting ability on hard-to-work-with materials.
12. Masonry Drill
As its name implies, the masonry drill bits are used for drilling hard materials such as bricks, concrete, natural or artificial stones.
This drill bit is specially designed for construction or renovation work. The size of the masonry drill bit is clearly variable and can be selected as needed.
However, you need to make sure the quality is good so it can gives you an optimal results.
Also Read: “9 Common Types of Power Tools“
So there you have it! The 12 types of commonly used drill bits!
