DEWALT Oscillating Fastcut Carbide Grout Removal Blade (DWA4220)

Did not work with my Rockwell tool without reshaping the mounting opening. This Dewalt lasted MUCH longer than the diamond blade I started with from Menards. Note that this blade is slightly wider than the ~1/8" diamond blades. Since my floor grout is nominally / generally wider than 1/4" I thought this blade would be better but in places my grout was narrow and i feared getting into the tile with this... it worked though. Overall, if this fits your oscillating tool, this cuts well and has lasted 2 to 3 times longer than my Menards diamond blade and is still cutting fine at the end of my project.

I had to redo my entire kitchen floor grout. With as much time as I spent on my knees, I would expect a raise, but I digress... I bought this grout saw and the counter part "normal" dewalt multi-tool grout saw. I used my Dewalt cordless 20V XR multi tool (they fit fine). Of note, I started with a dremel brand grout blade that I grabbed at Home Depot, and it lasted about 15 square feet. I got both of the dewalts here for about the same money I spent on the dremel alone. Kitchen was about 400 square feet. I did 80% of it with this blade. After burning the dremel one up, I switched between this and the normal dewalt, but used this more because the shape allowed it to cut a wider swath with each pass. My grout must have been mixed poorly at install because I had sections that cut like butter, and others that cut like a diamond. Overall I was very happy with the performance of this piece. I applied more pressure and went slower on the hard parts and it would eventually get it out. I did split the blade like others have posted about near the end of the job, BUT I was clearly starting to abuse the tool. I was also easily 20 hours into the job at this point and at least 250 square feet of cutting. I started to torque it in the groove cut by the grout to clean the sides of the tile in one pass, and it started a split. I'm sure if I had not been more gumptious with it, I could have done the whole kitchen with it. Now, comparing it to the regular, straight blade, I cant say it cut any better. It obviously cuts wider, which sped things up a bit, but for the most part, they were equal in their performance. Hope this helps!

Blade size is just right . It’s dealt got to be good .

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.

Makes fast work for removing grout. Good price for quality product. Better than most blades I have used so far, lasts longer and cuts faster because it uses a saw-tooth style blade combined with abrasion finish

This was a life saver for my bathroom remodel. I used this to remove the excess thinset from in between my tiles. I would definitely recommend this accessory.

Was somewhat worried about the 1/8 inch posts, but I must say this thing is freaking amazing. No worries in 1/8 inch. It’s not just good. It’s freaking other world good over using standard grout blades. Is it worth the extra money? Oh hell to the ya! It’s one of those simple tweaks in the tool that makes all difference in the world. No chipping at the tile and it flys thru 10’ grout in seconds I just threw it on minutes ago, so I have no idea about the durability just buy it

This seems to seat properly in my Dremel Multi-Max but after a few seconds of use it falls out of the tool. For the few seconds it stays in the tool it does work but I ended up using my OG Dremel grout attachment (which had little life left, hence my purchase of this item). Bottom line: if you have a Dremel Multi-Max, use the Dremel attachment, not this.

This tool is perfect for removing grout and did the job very well. This one is for thicker grout removal and would recommend having two sizes (thin and thicker) to remove grout in most instances. This tool I would anticipate would last for a few jobs as it's good quality.

Check exactly what blades you need, this one does not fit Bosch machines (Starlock). Needs improvement on description.

Muy buena calidad

Good product

So quick and easy for removing grout between tiles. Amazing!