EZARC Diamond Oscillating Saw Blades Set for Grout, Mortar, 4-Pack

Works well for grinding down mortar. I'd recommend to let it cool down in-between to extend the life. But, so far, it's still good. Not problems like others described. Cuts through old mortar very well. I have not tried it on the grout lines yet. The grout blades are nice and thin.

Worked well to clean mortar joints

I know the description says its for grout, i used it to complete a 90 degree cut on my backsplash. It did the job but it was clearly not meant for tile. My cuts were only 1/2in or so so i knew id make it work. Anything longer i would not recommend.

Why did you pick this product vs others?: I was looking for blades that would cut into concrete block wall (I had to drop 6 outlets and 2 low-voltage boxes). We needed a clean cut without breaking the concrete. These worked about as well as I could have hoped. Cutting ability: They met expectations. You have to be patient with concrete and an oscillating tool. If you need to move quicker, you'll have to buy a concrete saw. This was perfect for cutting rectangles for outlets and low-voltage boxes. Cutting speed: It's a multitool blade. It's not going to cut fast....it was never supposed to. These are great blades. They do their job, and they last a proper amount of time. The price is the win here. It doesn't make sense to over-invest in blades. They do a great job at their price point.

Great Blades. Cut into my concrete basement floor with no problem. I cut the floor to replace an existing floor drain. Blade still has enough aggregate left to start another job.

These blades worked great for cleaning out the hardened thinset between my tiles.

Worst product can not even call these blade, it snapped off within minute of use. The product is advertised as diamond tip but its so brittle and con not remove grout. Had to waste all two packets with 3 blades each still could not remove on line of 2 feet sanded grout. Just wasted time and money on it.

Works ok on grout but doesn’t really work that well on any tbh ing much harder. They must use CZ haha. Regular diamond blades are much more jagged. This whole “diamond” section was pretty smooth to the touch.

Usadas para quitar lechada en piscina, funcionan a la perfección, durante bastantes metros lineales, una hoja muy interesante!!!

I do not often award 5 stars. Delivery was next day which was better than the estimate when I was searching. The quality is better than expected. I needed to remove some squeeze-out from the mortar/ adhesive used to set tiles. They powered through it without difficulty. Where blades exceeded my expectation was when I used them to abrade some of the tile to make the new grout joint even (had several bad cuts on the wet saw). It was floor tile and HARD. I did not rush the cuts and the blades worked.

Usati per rifare le fughe alle piastrelle e fanno bene il loro lavoro... durata nella media se usate bene. Non vanno bene per tagliare piastrelle, per quello è meglio usare il flessibile col disco diamantato... Ottime sugli angoli.

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Très satisfait de ces accessoires utilisés sur multifonction cutter Dewalt pour refaire les joints sur carrelage de sol