cutting concrete with angle grinder

Cutting Concrete with Angle Grinder – Tips & Tricks

Concrete is a popular building material that is used for a variety of projects. However, it can be challenging to cut through when you don’t have the right power tools. This blog post will discuss how to cut concrete with an angle grinder. You will learn useful tips and tricks for cutting concrete with angle grinder.

What are the Best Cutting Discs to Cut Concrete?

A diamond saw blade is always the finest choice for cutting concrete with an angle grinder. Diamond saw blades provide a straight sharp-edged cut, long-wear edge for making fast, clean cuts in concrete block walls and similar materials.

The rim’s shape on the cutting disc helps determine how fast and evenly the blade will cut through a material. With a little extra work, it is possible cutting concrete with angle grinder using a diamond saw blade.

It’s a no-brainer to use a diamond blade to cut concrete block walls with an angle grinder, but your accessible options don’t end there. When it comes to the shape of the rim for a diamond cutting disc, you have a few other types of discs:

  1. Continuous Blade.
  2. Segment Blade.

1. Continuous Blade

The best option is the continuous rim which provides an extra-large visible surface area for quick material removal. Also, the continuous rim with stand-off ribs placed between the diamonds to reduce heat build-up and remove debris so that cooling air can enter.

cutting concrete with angle grinder

2. Segment Blade

A segment concrete-cutting blade is a medium-priced option with a steel core and a continuous rim, but it has fewer diamonds than the continuous rim. Lastly, the segmented blade typically cuts around 5 to 10 percent faster than a standard segmented rim diamond blade or solid rim blade.

cut concrete with angle grinder
cut concrete with angle grinder

Cut Concrete with Angle Grinder: Step-by-Step Guide

Cutting concrete can be difficult without the right versatile tools. However, it is possible cutting concrete with angle grinder using the appropriate diamond blade that fits your model.

cutting concrete with angle grinder

Step 1 – Wear Protective Gear

Before you start the cutting process, you should make sure that you are wearing the proper safety gear before using this powerful machine. Particles of concrete can affect your work. You will need sturdy gloves to protect your hands from flying debris and rough edges, Safety goggles to keep any debris out of your eyes, a Dust mask, and safe footwear.

Step 2 – Prepare Tool for Cutting Concrete

Once you have obtained the proper diamond blade, you must prepare your angle grinder for cutting. If your model is cordless or battery-powered, ensure fully charged before starting this project. If it isn’t, you can use an extension cord to provide suitable power.

Step 3 – Create Vertical Edge on Concrete

If you already have a cut line on the concrete, use a marker to create a vertical edge. If there isn’t a cut line or you want a cleaner look, measure and mark the straight edge with a tape measure and put pencil marks. At this point, it is important to make sure that your angle grinder is off and disconnected from the battery.

Step 4 – Insert Diamond Blade

When cutting concrete with an angle grinder, you must not push down on the diamond blade while you are using it, using pressure to cut will dull the wet blade and cause dangerous accidents. It can also cause your angle grinder to overheat. Instead, hold the tip of the diamond blade against your cut line and let it do the work with maximum speed.

Step 5 – Cut Concrete with Cordless Angle Grinder

If you are using a cordless angle grinder put up your safety glasses, you can start making your cuts by flipping up your safety guard and pressing down on the trigger to activate the rotation. Hold the base of the angle grinder firmly against the concrete surface and let it cut. Using a corded model, connect your extension cord and then start cutting.

Step 6 – Clean Concrete Edges

Clean up any sharp edges when your cuts are completed by running over them with a wet Circular saw. This will smooth out any uneven or bumpy surface and leave a clean-cut line.

Step 7 – Repeat on Other Edges

Repeat this technique for other cuts on your concrete material. Pay special attention to any measurements you created using a tape measure, as they should be the straightest edges of all. When you are finished, clean the concrete dust, let the concrete dry completely before lifting it back up or using it.

Using an angle grinder with a diamond blade is best to make straight cuts in concrete, ceramic tiles, or masonry material.

Quick Tips to set Angle Grinder for Concrete:

  1. Prepare your work area.
  2. Mark cut line
  3. Protect yourself
  4. Firm grip Check.
  5. Operate the grinder correctly.

If you’re searching for the best angle grinder for concrete, then have a glance at our buying guide.

How to Choose Right Angle Grinder To Cut Concrete?

There are a few factors to consider when choosing what size angle grinder, you need. These include the type of material, powerful motor, material size, faster-cut speed, and level of experience.

Material Type:

The first thing you will want to consider is the type of material that you would like to cut through with your angle grinder. For instance, if you are cutting through metal, you will need to select an angle grinder made for this type of material.

Size of Material:

The size of the material you are working with is another important consideration when choosing the size of angle grinder you should use for your project. If the material is larger in size, then you will want to select a larger angle grinder. This will give the tool steady and more sufficient power to complete a task with a larger cutting surface area.

Experience Level:

The level of experience you have using an angle grinder should also be considered when choosing what size angle grinder to cut concrete or any other material. For example, a beginner may want to use a smaller angle grinder that is easier to handle and control. Choosing the best size angle grinder may take some experimenting.

Angle Grinder Blade Size:

Some of the ways to cut concrete include diamond blades, grinding disks, or diamond core drills. You’ll need to make sure you choose the right type of blade for your angle grinder.

Let’s have a look at our buying guide on best 41/2 angle grinders, click to see the guide.


After reading this blog post, you should have a better understanding of how to use an angle grinder in order to cut concrete with the proper safety equipment. You can also find out the best cutting discs for your needs and when it is appropriate to use one versus the other. We hope you enjoyed learning about this topic and found it informative and helpful.

Similar Posts

Leave a Reply

Your email address will not be published. Required fields are marked *