EZARC Diamond Oscillating Blade, Flush Cutting Oscillating Multi Tool Saw Blades for Grout Removal, Cleaning Mortar DO34F, 3-Pack

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.

Was having some despair when after two days of work I had struggled to cut out 1/3 of the ceiling opening for a new attic ladder and melted through over $50 of blades. When I finally got a piece out and realized it was rock lath (plaster over a cement board) it made sense when even hardened cutting blades were melting in moments. I didn't feel comfortable taking a diamond cutting wheel on a rotary cutter to my ceiling, and over my head, so I tried these on the recommendation of the normal oscillating blade's quality from a popular review source and order three packs of them - hoping they would work but expecting to still need a bunch.Turns out one blade finished the removal of the ceiling in a fraction of the time and effort as I had spent already. It's still a slow, terrible, awful, messy, nightmare of a process to cut through rock lath since you're just grinding it into fine dust. These worked though and left a relatively clean and stable edge (rock lath usually winds up ragged and crumbling with standard tools). Still make sure you put plastic up to contain all the fine dust and wear protective equipment.Hopefully these work as well on my grout issues when I get to that and will keep them on hand for anytime I need to cut into the rock lath walls in the future.

Received the multi blade pak for floor tile grout removal. The side swing design blades 2 worked really well. My wife and I used them with Dewalt 3 speed oscillating tools to remove grout in 16×16 floor tiles.The good: the swing blade design is the best of the 3.The diamond coating lasted 3 times longer than a Milwaukee diamond coated blade that was 35 bucks for one.The Bad: the straight blade worked but not near as useful for large wide grout lines 1/4 plus. Also wore out faster (diamond coating ) than swing design.The ugly: the half moon blade is too small to reach in the grout line at depth. It doesn't have enough clearance from the oscillating head to be useful. Maybe some smaller tool designs at the head other than dewalt would work.P.S. Don't bother with carbide coated blades for this type of work, purchased a pac at Walmart and they wore out very quickly.Would buy them again. Just purchased a 3 pak of swing design to finish up the 1000 plus sq ft of floor tile grout.

Got these to cut through a plaster wall in a mid 50’s house during a renovation. Did a nice job with less dust than a more aggressive method. For the price, I’m very pleased.

Works great for removing grout

I purchased these to notch cheap ceramic tile for shower door install. They are recommended for Grout removal, which I am not using them for, but they are supposed to be diamond grit. The tile I am cutting is as soft as they come, but these blade won't touch it. The diamond grit comes right off. I use diamond grit tools almost on a daily basis drilling and grinding glass. No good.

I bought these months ago for another project. I was in a time crunch and they did not arrive in time so I used every other brand available locally. Milwaukee, Diablo, Dewalt, etc. These got the job done but I burned through a lot of them on a relatively small job. Fast forward to a week ago. I had another failed shower repair job.Hands down these are the best blades for cutting through grout, cement board, thinset and some tile. They are sharp enough to make the initial cut and stay on track without bouncing around. They held up through a much more material than the other brands. To the point I was getting quite aggressive and basically abusing the blades. Excellent durability, remained sharp and therefore safe and accurate. If the blade is not sharp enough it will bounce around and scar the adjacent tile...making the job bigger, more time consuming and more expensive.And they are much less expensive than the box store brands. I have ordered more just to keep in my tiling tool kit. Quality, durability, and value all top notch. I try out EzArc's other oscillating blades with hopes they are as good as these.

Why did you pick this product vs others?:Durable and well made, used to grind excess cement off concrete steps and remove rough edges.