XXGO 4 Pcs Diamond Oscillating Multi Tool Blades for Removing Grit Grout XG4202S

I didn’t want to buy or rent an angle grinder that I don’t have to route a 10’ crack in a concrete slab on grade driveway in preparation to seal, so thought I’d give these finger carbide blades a shot since I already own a Dewalt 20v cordless oscillating tool. The reviews were pretty positive regarding grout removal and the video of the guy grinding a brick was impressive, but I was curious how they would stand up to prepping a concrete crack.In short, I was impressed! I used one blade to prep a 10’ long crack that went from about a 1/4 inch to 3/8 inch in width. Not only did the blade dress the edges of the crack nicely making them uniform for the backer rod and sealant installation, I was also able to cut down deeper in the slab where necessary for the proper depth of my repair. I’ve posted a before and after photo of one section of the prep. You can see how nicely the finger blade prepped the edges and made a more uniform crack to seal. The carbide blade showed some buildup from the grinding but I couldn’t see where any of the carbide particles wore off. Incredible.In closing, using one XXGO carbide blade that ran less than five bucks I was able to prep this crack and avoid buying or renting an angle grinder. I love my Dewalt oscillating tool and now I have another application that truly makes it a multi-tool!

I've been using these things to cut glass works better than everything else I have tried

I'm removing old grout from the floor of a tiled shower. 4'x7' with 1" tiles, so tons of grout to remove. Too big of a job for this blade, but I used an angle grinder for the vast majority. This tool attached to my Makita oscillator was perfect for getting the last inch or so against the walls where I couldn't reach with the circular blade without damaging the wall tiles. Made quick work of the grout, but the blades are thin so you have to use care not to put too much pressure on the tool while cutting. Let the tool and the blade do the work. One blade bent while i was using it, but I was able to straighten it out and continue using it. All in all I cut about 30' of grout in 1.5" increments around the perimeter of the shower. First blade dulled. Switched to the second to finish up. Still some life in the second blade. I used the rectangular blades for short runs and the arc blade for longer runs. Do not was your time on the carbide blades. Bought one at the warehouse store for twice as much as this pack of 4 and it lasted 5 minutes. good luck with your project

Worked great! Not cheap quality.

Complicó con lo que yo quería, solo lo ocupe para rebajar una línea de grout y se quemó una de las navajas, tiene muy poca duración pero por el costo que se paga por ellas te sacan de un apuro a un costo accesible. Buena relación costo calidad.

This did the grout removal perfectly. I bought one at the big box store for 1 piece for $30 that is a little difficult to use.

I bought these to remove a bad grout job we inherited when we bought our vacation home. It made quick work of the removal leaving clean grout lines these won’t last long for a contractor but if you’re looking for a diy set these are worth the fair price

Absolute junk. The longer blade lasts for about 20" of grout before the 'diamond' completely wears away. The shorter blade is not long enough for a Dewalt, the Dewalt tool hits the work before the blade does.