Physical Address

304 North Cardinal St.
Dorchester Center, MA 02124

How to Remove Grout With An Oscillating Multi-tool

People working with ceramic tiles, walls, bricks, precast concrete or any solid surface, must acknowledge the importance of grout and oscillating multi-tool. And removing grouts is also something that workers need to know how to do perfectly otherwise you are going to ruin the tile or surface.

Many people have asked how to remove grout with an oscillating multi-tool? We will come to this, first, you need to know what these two things are. It is not the hardest job in the world. You can do it if you acquire proper knowledge. This is why we are here to help you with this article on how to remove grout with an oscillating multi-tool.

You will be a master of it once you go through the words below. Take a look.

What is grout & why should you remove it?

Have you seen mortars being cemented on floors, tiles or even walls? This is a kind of paste, an adhesive type of thing that binds solid things in place. Grout is mainly the mixture of sand, water and cement to make a concentrated binding for adjoining tiles and other materials. The dense fluid substance mainly affixes wall gaps, tile gaps and reinforces structures that require binding.

Keep in mind that grout size matters a lot. They can be varied into different sizes like 2/16 inches for ceramic tiles or thin glazed bricks. The size can start from ⅛’’, ½’’, ⅕’’ defending on the medium you are working on. Call it glass structure, tiles, bricks or anything.

Why is it necessary to change the grout? We say we don't like the tarnished colour at first once it gets older. Then there can be weary parts that can make your tiles look impaired.

The worst part is grouts get mold in them and are hard to remove. So it is better and easier to replace the tile or grout. Simpler is better. This is no hard job, we will tell you the steps in the latter part.

What are oscillating tools/ oscillating multi-tools?

To start it off, it is a handy power tool any worker deserves to have in their tool bag. What is it? We call it a sander, a grinder, a saw-like a cutting machine or a scrapper. It is a multi-tasking tool but is mostly used for tile and wall jobs.

LIke clearing scraps, grits and all. It is a portable handy gadget that is sharp on the end and has blades or saw tooth (sharp ends) that goes by rotation per minute (RPM).

It has different power motors ranging mostly 4 amps. And guess what it can oscillate 10,000 to 20k rotations per minute. It comes with a power chord so that you can move and work with it. There is a vibration dampening system, to keep your hands stable while the tool rotates the blades.

What can you do with it? You can cut plumbing pipes, then smooth a wooden surface, which we call sanding a surface. Door case trimming, scrape out moulds from any place, take out unnecessary paints, efface hard mortars, cut out adhesives, plus drywalls can be separated as well with an oscillating multi-tool.

Last but not least you can remove grout, that's what we are here for. So how do you remove grout with an oscillating multi-tool? Let's check out the steps below.

STEP1: Types of equipment and safety gears

You will need a utility knife or blade to cut the bits and pieces. Then you must have safety goggles and gloves to protect your eyes and hands. YOu must have a grout removal tool, such as an oscillating multi-tool.

Also, have a carbide tip grout removal tool for excessive cleaning. Vacuum to suck out the debris and a garbage bag to dump things into it.

Step 2: Start with the oscillating tool right away

Make sure you have your safety gear on, not put on the blades on your multi-tool. Now work it out in angles you prefer, it can be horizontal or vertical depending on the plane of the surface you are cutting through.

The best part is that you don't need to pressure or force your strength to remove the grout. The motor is powerful enough and it will easily efface the grouts and then you can dump it on the garbage bag.

Step3: Perfect angle

You don't want to hurt your hand or damage the tiles. BE observant and see what needs to be taken off. Hold the tool perpendicular and try to support your palm on the tool handle comfortably.

Make sure you cut through the fruits gently at a perfect angle. NO damage should be done to the tiles.

Step 4: Use a carbide tip to remove excessive grouts

Well once you are done with the power tool it's all done and dusted. But yeah the dust remains. This is where carbide-tip grout removal tools are handy. Fit the carbide tip on the head and try to flush out the sturdy pieces.

There will be some and this will help you get rid of it.

Step 5: Use the knife to clean the extras

We talked about utility knives, this will be in work when you see some leftover grouts still clinging to the tiles. Use a dull blade instead, don't want to hurt yourself with a sharp knife.

Sharp knives might damage the tiles too. Use it as you like until the grout is completely removed. Just be safe and sound.

Step 6: Flush out the remaining pieces with the vacuum

The vacuum machine will help you to blow out and suck in all the excessive remains of grouts on the floor. You won't believe there will be much dust and debris for sure. So vacuum it to keep the floor immaculate.

Every edge on the tile work should go through a clean pass from the vacuum. This ensures that no leftovers are there. You don't want to be walking or feeling grout scraps on your feet. It's embarrassing. No, but it's being clean and precise when working with a power tool.

Step 7: You are done

From steps 1 to 6 it's the most important thing. The last piece of the puzzle is cleaning it with a vacuum cleaner and you will get a new looking tile will no grouts in it. Trust the process, try it out, no matter if you are a noob or a Professional. These steps work like magic.


  • Be curious while poking around with a grout removal tool. You can chip away the tile edges, so be careful.
  • Grout removal tools like oscillating tools are extremely efficient gears. It usually doesn't harm the tiles if you work carefully. don't press it too hard as the power and oscillations can cut through and impair the tiles. In general, oscillators remove the grouts like a piece of cake and do not damage the tiles.
  • Older tiles might have shabby or unclean grout. We prefer you remove the grout with the power tool and make it anew. The colour fades and might not look pristine enough, so better get a newly titted grout and you can do this by removing the grout first.
  • Never pitch one grout over another. It will damage and make things worse. It's better to completely remove the grout using a multi-tool and make it look cleaner than before rather than stacking it.


IF you ever ask the question on how to remove grout with an oscillating multi-tool, you have your answer in the clear step by step formula above in this article Give it a read. Removing grout is simple and not complicated.

If you work according to plan and keep everything safe and sound, your work will be done in a flash and you get to see new tiles with ould grouts removed for better embellishment.

Oscillating tools are very handy power tools that will not let you down, you can follow the process we mentioned above, know what the tool is about and how to use it. You are good to go.

Newsletter Updates

Enter your email address below to subscribe to our newsletter

Leave a Reply