DEWALT Dwa4220 Oscillating Fastcut Carbide Grout Removal Blade

I already had a Porter-Cable Oscillating Saw, but needed a blade that would cut brick. This is a diamond coated blade which I used at my Son’s house to install a Ring Video Doorbell to replace his conventional Doorbell. It did require repeatedly going over the brick to complete the cuts but it worked. The blade worked well. It was a universal fit for Oscillating Saws so it was easy to use on mine.

They are not exactly the cheapest blades. I used them with my Ryobi oscillating tool. I went to re-grout the shower and this definitely helped remove the grout between the tile. I also used a hand tool to finish the job. The fact they are universal and do the job so well, I definitely recommend them.

I went through 5 of the cheaper Chinese versions. They lasted about one minute and took forever to cut through the grout. I was amazed by how well this works. After a WHOLE shower, the teeth and abrasive end are still intact. My job time was cut down dramatically. This toll slices through grout. Well worth the extra cost.

After trying a rotary Dremel that my dad lent to me and a few handheld grout removal tools, I bought a Dewalt oscillating multitool to quickly tear up the grout in my bathroom floor. I was unable to find a Dewalt grout removal blade at the store so I picked up one made by Rockwell (about $12) to try it out. It worked well; at least, it worked better than the other options I previously mentioned. However, I noticed that after only running through about 6-7 feet of 1/8" (about an inch deep)grout, the grit on the blade had wore off substantially and it didn't seem like it was cutting as well. I did a Google search to see what else was available and picked up this Dewalt grinding blade off amazon for about $23. I used it to tear up more grout in my bathroom and all I can say is that it works a whole heck of a lot better than the Rockwell blade. I didn't realize how hard I was pushing on the tool to get the Rockwell blade to cut through the grout. With the Dewalt blade, I'm still pushing on it but not nearly as hard as I had been and it seems to do a better job of pulverizing the grout into dust. Conversely, the Rockwell seems to break it up into larger chunks while pulverizing the top layer. Appearance wise, the Dewalt blade is substantially larger (probably twice as large) and has a wavy pattern to its edge. Not sure how this works better (perhaps more blade is able to come in contact with the grout), but it definitely does. Dewalt says you can cut through grout 2X faster with this blade, but I bet you I'm going 3-4X faster.The only hang up I have is that you chew through the bit really quickly. This is more a testament to the nature of the bit and the tool rather than the Dewalt bit specifically. After tearing up all thr grout in my bathroom I will probably be tossing both bits simply because they have become so dull. For that I can only give it 4 stars.If you are looking for a good grout removal blade to go with your oscillating multitool, Dewalt or otherwise, you can't go wrong with this one. Its worth the money as it saves a lot of time and requires less energy to use.

Milwaukee fan boy here. I've been beating the crap out of this blade for two and a half years cutting plaster. Only used it one time removing grout. This thing is a beast. I already bought another one...a few months ago. Waiting for this one to actually kick the bucket. It keeps going.

This worked wonders for removing the grout between tiles so I could remove a layer of wall tyle in prep. for new quartz countertop.

Perfect grout removal blade. Did a very quick job on the top pool tile layer before having it acid washed

THis thing cuts well and I am surprised how well the grit holds up