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Cutting Concrete with an Angle Grinder: A Comprehensive Guide

Concrete is a durable and long-lasting material that is often used in construction and home renovation projects. However, sometimes you need to cut through it to complete a task. This is where an angle grinder comes in handy. An angle grinder is a versatile power tool that can be used for a variety of tasks, including cutting concrete. In this article, we’ll go over everything you need to know to safely and effectively cut concrete with an angle grinder.

Step 1: Gather the Tools You’ll Need

Before you start cutting concrete with an angle grinder, you need to gather all the tools and materials you’ll need. Here’s a list of what you’ll need:

Step 2: Prepare the Work Area

Once you have all the tools and materials you need, you should prepare the work area. Clear the area of any debris or objects that could get in the way or get damaged. Make sure you have adequate lighting so you can see what you’re doing.

Step 3: Mark the Cut Line

Using a measuring tape or ruler, measure and mark the cut line on the concrete surface. You can use chalk or a pencil to make the line. Make sure the line is straight and clearly visible.

Step 4: Attach the Blade

Next, attach the blade to the angle grinder. Make sure the blade is tight and secure. If you’re using a diamond blade, make sure the blade is rated for concrete cutting and that it’s the right size for your angle grinder.

Step 5: Start the Cut

Start the angle grinder and bring it to the surface of the concrete. Begin cutting along the marked line, keeping the blade at a 90-degree angle to the surface. Move the angle grinder slowly and steadily, using steady pressure. Avoid applying too much pressure, as this can cause the blade to break or become damaged.

Step 6: Use Water to Reduce Dust

To reduce the amount of dust created during the cutting process, use a bucket of water to wet the concrete surface. This will also help keep the blade cool, which can prolong its life.

Step 7: Finish the Cut

Once you’ve finished cutting, turn off the angle grinder and remove the blade. Inspect the cut to make sure it’s clean and straight. If there are any rough edges or jagged areas, you can use a hand-held masonry saw or concrete saw to smooth them out.

Safety Tips

  • Cutting concrete with an angle grinder is a task that requires caution and proper safety measures. Here are some tips to keep in mind:
  • Always wear safety glasses and ear protection to protect your eyes and ears from debris and noise.
  • Wear a dust mask to avoid inhaling concrete dust.
  • Keep your work area clear of any objects or debris that could get in the way or get damaged.
  • Keep a firm grip on the angle grinder at all times.
  • Avoid applying too much pressure, as this can cause the blade to break or become damaged.


Cutting concrete with an angle grinder is a relatively simple task that can be done with the right tools and proper safety measures. By following the steps outlined in this article, you can easily cut through concrete to complete your next home renovation or construction project.

Final Thoughts

BSP-Diamond tools manufacturer – Hope the information could help you know how to cut concrete with an angle grinder. If you want to know more about our product or cutting knowledge, please click here to get.

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