Drill Bit Angle 118 Vs 135: What’s The Difference?

Last Updated on August 31, 2022

If you’re wondering about the difference between drill bit angles 118 and 135, read on. The shallower angle allows the bit to cut more material without quickly dulling, but it can also lead to wandering and require the use of a center punch.

In contrast, the flatter angle of 135 is best for drilling holes that have a very steep pitch. The shallower angle is often more appropriate for small holes.


A painter needs brushes, a cook needs knives, and a contractor needs drill bits. The difference between a 118-degree bit and a 135-degree drill bit lies in their point angles. The 118-degree drill bit is steeper and more pointed, with a smaller chisel.

This type of bit can cut soft materials like wood and plastic, but it can also puncture steel and other harder materials. The 118-degree bit is more likely to dull more quickly.

The 118 degree point works well for general-purpose drilling. However, if you are using a drill made of hard materials, you will need a drill with a 135-degree point angle. Generally speaking, this type of drill is furnished with cobalt steel and high-speed twist drills.

On the other hand, softer materials such as wood may need a smaller point angle. The 118 degree point is a good compromise between the two types.

Consumer-grade bits are often 118 degrees. While this is suitable for most materials, it may walk on some hard materials, such as steel. If you have a large drill bit, a 135-degree angle is better.

You’ll be able to pull the bit in with more force and avoid walking, while a 90-degree angle is prone to walking. A protractor can help you measure the angles and select the correct bit angle.

Using the correct drill bit is vital to the overall success of your project. Using the wrong angle can damage the material or cause a tool to break. Therefore, it is critical to know what type of material you are drilling.

You’ll want to use a bit that suits the job. This way, you’ll be able to drill through it quickly and safely. If you’re drilling wood, 118-degree bits will be fine. But if you’re drilling through metals, you’ll need a 135-degree drill bit.


The two most common included angles for drill bits are 118deg and 135deg. These angles are an artifact of the manual drilling process. Before the use of drill bits with a point angle of 118 degrees, these bits were simply conical in shape.

Later, tool makers learned to grind the point of a conical bit onto a flat surface, which allowed them to create linear chisels that reduce the thrust needed to cut and remove chips.

The lower angle produces a smaller chip. This means that less force is needed to remove the metal, and less heat is produced. Lower angles also allow you to cut softer materials, since they increase the length of the cutting edge and the amount of material removed per revolution.

However, the downside of a lower angle drill is the possibility of large burrs and poorer performance. In order to avoid this pitfall, drills with a 135deg angle should be sharpened before use.



If you’re a regular shop worker, you may be wondering which is better: a 118-degree drill bit or a 135-degree drill bit. Both are acceptable for general-purpose drilling, but there are differences between them.

Using one type of drill bit over another will decrease the life of your tool. Whichever one you choose will depend on your project. The following table will explain the benefits of each type.

The 118-degree point angle is best for soft materials, while the 135-degree point angle is best for harder materials. The 118-degree bit is also more aggressive, because its chisel is smaller.

However, a 135-degree drill bit is better for drilling into tougher materials. It’s also more likely to result in repeated drills. So, if you’re not sure which angle to use, try a few different combinations.

While the 118-degree drill bit is fine for most DIY projects, a 135-degree drilling device is better for tougher materials. The 135-degree bit has a flatter cutting angle, which will allow you to drill holes repeatedly without wasting time.

However, it’s best to know your application before you buy one of these bits. Whether you need a bit for metal or a soft material, you can count on the assistance of a qualified NAPA auto parts expert to help you make the right choice.

The 90-degree drill bit angle is a compromise between two very different angles. A smaller angle is better for drilling soft materials, such as wood. The bigger angle will be more effective for hard materials, such as aluminum and steel.

However, a smaller angle will make it more likely to wander and will require more power to turn. You will also risk causing an over-sized hole, which will lead to frustration.

Another important consideration is the depth of the hole. If you drill too deep, you risk damaging the bit and the workpiece. Therefore, it’s a good idea to use the shortest bit that you can find that suits your job best.

It’s also important to note that the longer the drill bit, the greater the amount of run-out the drill press spindle has. If the drill bit has a longer length, it magnifies this wobble, which is harder on the bit’s cutting edges.


One major difference between a 115deg and a 165deg drill bit is the degree point. The former is suitable for general-purpose drilling in soft materials and the latter is suited for general-purpose drilling in hard high-alloy materials.

The former is generally better for general-purpose drilling because it takes more heat before it breaks down but chips more easily if forced. The ideal point angle depends on the material, feed and speed. Split points are also used to aid cutting at the tip. Sharpening a drill depends on the brand and the quality of your sharpening tool.

One of the major differences between a 115-degree drill bit and a 165-degree drill bit is the angle of the point. 115-degree drill bits have a narrower angle, whereas a 135-degree drill bit has a steeper angle. The 118-degree bit has a smaller chisel and a longer cutting edge, which is important for harder materials.

Another difference between 115 and 116-degree drill bits is their angle. 116-degree drills have a shallower angle than their 115-degree counterparts.

One should choose a drill bit with the right angle for the material they’re working on. A 118-degree bit is generally okay for most DIY projects, but a 135-degree drill will give you more control and precision in tough materials.

The 115-degree angle is the best for drilling softer materials, like wood and plastic. A 118-degree drill will cut through hard materials but will make the tool dull faster.

Expert drillers use a 135-degree drill bit because it will penetrate stainless steel better. The angle between a 115-degree and a 165-degree drill bit is a subjective decision.

Frequently Asked Questions (FAQs)

What is the difference between drill bit angle 118 and 135?

Drill bit angle 118 is more aggressive than 135. It is often used for drilling into harder materials, while 135 is used for softer materials.

What are the benefits of each drill bit angle?

The benefits of drill bit angle 118 are:
-It is more aggressive, making it better for drilling into harder materials.
-It can achieve a faster drilling speed.

The benefits of drill bit angle 135 are:
-It is less aggressive, making it better for drilling into softer materials.
-It can reduce the risk of breaking or chipping the material being drilled into.

Which drill bit angle is better for specific applications?

The best drill bit angle for a specific application will depend on the material being drilled and the desired results. However, in general, drill bit angle 118 is better for drilling into harder materials, while 135 is better for drilling into softer materials.

Last Thoughts

Whether you’re drilling a small hole or a large one, the right drill bit angle is key to ensuring your project goes smoothly. With this guide, you should now be able to choose the right angle for your needs and get started on your next DIY project with confidence!

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