How to Cut Asphalt With an Angle Grinder

If you’re doing small DIY projects around the house, the best angle grinders can be very useful all-purpose tools to have lying around. That includes projects such as working on your driveway or any other area consisting of asphalt. Sometimes you just need to get the job done without spending a ton of cash on some new tool where an angle grinder could be just as effective. In this guide, I’ll break down how you can cut asphalt with an angle grinder to ensure you have clean cuts, all while saving yourself some money.

Tools Needed

  • Angle Grinder (If you don’t have one lying around, I recommend buying the Makita Angle Grinder, which you can check out here on Amazon. I will cover it a bit later but make sure that the blade you are using is a diamond blade.) Check out the different types of angle grinders you can use, and make sure you have the right one for this project.
  • Protective equipment –  when handled improperly angle grinders can be dangerous so you want to make sure you’re taking the proper precautions by wearing boots, protective eyewear, and gloves. 
  • Broom (Helps ensure a clean area before and after you start making cuts)

Directions

Step 1: The first thing you want to do is put on any protective equipment you have. That means goggles, boots, gloves, and a mask.  I would even go as far as maybe having some ear plugs as well to make sure you’re not damaging your ears. I have tinnitus and it’s not fun, so please protect your ears as you only get one pair.

Step 2: Using a ruler (or something similar for creating straight lines) and a drawing utensil, draw the line for where you want to make the cut on the asphalt. This will be your guide for ensuring a clean straight cut.

Step 3: Using the angle grinder begin cutting along the line that you drew, making sure that you are holding the angle grinder in a way where you’re at the lowest risk of It kicking back.  As I mentioned before, the blade you use should be a diamond blade as anything else will reduce the quality of your cut.

Step 4: After making your cut, use an asphalt cutter or a sledgehammer to break off the piece(s) of asphalt you’re trying to remove..

Step 5: Rinse and repeat as necessary.  The blade of your angle grinder will most likely shrink, so be prepared to have replacements on hand if you’re someone who uses angle grinders often. Depending on the size of your project, it’ll take roughly about 30 minutes to an hour  to completely make the cut and break off the asphalt. 

If you’re a visual learner like I am, I included a video below of a gentleman cutting asphalt  in his walkway, although I would recommend jumping to the 1 minute 20 mark,  as he does ramble a little bit in the beginning. 

https://www.youtube.com/watch?v=LWFMnpnsqK8
Note
Even though it is possible, I do not think an angle grinder is the best tool for cutting asphalt. A circular saw with a diamond blade or a worm drive would probably be an easier way of cutting asphalt, although it would be more expensive if you don’t already have one of those tools. If you do have the budget for one, here’s a circular saw I highly recommend.

Final Thoughts

If you’re interested in learning more about cutting

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