XXGO 4 Pcs Oscillating Multi Tool Diamond Segment Swing Semi Circle Grit Grout Saw Blades XG4002D

These are perfect for when you’ve got large sanding jobs and 60 grit is taking too long. I’ve used them to restore 12 foot wide 4 foot high signs with over 40 ft.² of deteriorated background. They last forever on wood. I’ve used the same one for 8 years. I bought this pack because that one had a little dimple in it that was making uneven streaks, which was actually helpful because it really dug in fast, but I bought these four to get some with the more random patterns.

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'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

It worked perfectly!

I was expecting to grind right through old grout, but the bottom edge didn't seem to last very long on the circular attachment. Maybe the straight edge attachment will work better. It did fit my Craftsman multitool no problem.

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

Worked great! Not cheap quality.

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.