Dremel MM501-1/16-Inch Oscillating Multitool Blade for Grout Removal, Fast Cutting Carbide Accessory - Universal Quick- Fit Interface Fits Bosch, Makita, Milwaukee, and Rockwell

this is not a fun tool to use, like a chainsaw, but it gets the job done. i removed the grout on 24 square feet of bathroom shower wall between 4x4 in. tiles in 3 evenings/nights (w kids and a job, you find time to work when u can). these are smallish tiles, so the task was tedious, and the dremmel, as you probably know is loud - plus its dusty work in a pretty small space, so not a fun job. but our old grout cracked in some spots, and was allowing water to leak through the tiles, so it had to be done. the 1/16 in blade fit between the tiles quite well, and our grout lines were very thin - in a lot of places, it eroded the edges of the tiles a little, but even those places look great, and held the new grout without a problem. inspection of the blade itself after the job shows zero wear and tear, i would predict that for removing grout, this blade will outlast the dremmel itself, and could easily handle a bigger job than our humble bathtub walls. if you have old, thin grout lines, and its time to redo it, this is the tool. we had some damage behind the tiles that required installing new drywall, so this project turned out to be a little bigger than i hoped, but i was expecting that. in summary, this project ended up looking great, the grout blade saved me a lot of time versus removing it buy hand. i estimate a tile pro would have charged us somewhere near $500 bucks for the whole job, and i spent about $100 on thinset, grout, drywall etc. i saw this blade in several stores, but the amazon price was $10 bucks cheaper (got here in about 4 business days), so overall, there's a couple bucks i can reinvest back into some other project - homeowners know, they're never ending!!

Fantastic with 1/16” grout lines. Doesn’t fit DeWalt DCS355, so not quite universal fitment but fits Milwaukee 2526 just fine. The variable speed Milwaukee works better cutting mortar (more control.). Cleared 250 ft of hit or miss mortar out of grout lines in just a few minutes. The blade cuts well through 6 day setup Schluter All-Set cleanly.

Finding a blade that will work for the 1/16" grout line typical field of 4x4 wall Daltile tile is less than easy. Initial concern was a 1/16" blade kerf was still larger than actual. A typical credit card is 1/32" thick, so stack two and you have your 1/16" feeler gauge. This worked well. Very dusty so the typical PPE endorsement applies. Don't rush it. Don't force pressure, let the tool do the work. Maintain that 90° angle. Highly successful result and when you consider how much time this will save vs a manual approach, Good value. Dremel has been around for years and they clearly got this one right.

I had to have the wall opened in order to replace old water pipes. The plumber didn't think I could take down the old tiles without breaking them but it was either that or replace three whole walls of tile. I was not able to get new tiles to match the old ones (55 years old). I started with the Dremel rotary grout tool but those didn't last long. I bought the Dremel Multi-Max and used the 1/16" blade and removed about 40 tiles, breaking only two and losing a couple where the faucets came through the wall over the tub. I got near-matches to put behind the toilet where they don't show and the whole job came out great. Only one caution: this blade will cut the tile and in some cases the tile edges got messed up--those tiles went behind the toilet. The blade also cut off the tile spacer lugs and plastic spacers had to be used when replacing them. Once the grout was removed I used a heat gun and scrapers to soften the adhesive and remove the tiles from the wall. Then a heat gun and scraper to clean up the backs of the tiles. A lot of labor but it saved a lot of money.

Used this on my dremel multi max to regrout my bathroom - and it’s incredible. Removes grout quickly and easily, and it never seems to wear out. One thing - if your tiles are set closer than 1/16” apart, as mine are, it will cut into the tile. For me this wasn’t a problem - I have white tiles and I used white grout, so you can’t really tell the tiles were cut into a little. In fact, I now have even spaces between the tiles throughout the bathroom, so it ended up a positive. I would just say go slowly and let the machine do the work. If you apply too much pressure, you will chip your tiles. Position the machine so that your view of the blade is clear, and keep the blade moving in a straight line along the grout line, and avoid hitting the edge of the tile.

This was perfect for my Dremel 6300 multi-tool. Another carbide blade which was advertised on Amazon as compatible with Dremel did NOT fit the 6300, so watch out if you are thinking of ordering one of these 3 for 1 blade deals. I used this to rehab the grout in the tiles in my shower and it worked fine. Made an easy job out of the drudgery that would have existed with a hand grout saw. I highly recommend this blade.

NM

I've used a few different brands of these grout removal tools. Just for comparison, I also used a Harbor Freight version as well as a Bosch. (And just an FYI, the tool I'm using this with is a Harbor Freight pneumatic multi-tool, which has proved to be an exceptionally useful tool for the twenty-something dollars I invested in it.) Where this Dremel version stands out is its "square" corners and its beefy construction. The corners make it easy to get into the tight corner spaces which proved difficult with the other tools, and the thick construction is better than the rather thin HF bit which, after time, begins cracking where the metal bends flat to the base. Grout removal is quick -- just have a vacuum ready. It won't eat into the tile unless you really are trying to grind into it, so you'll end up with a clean, grout-free groove to caulk or re-grout. I've also used this to strip down a layer of thin set mortar down to the backerboard, for reapplication of tiles. It's not the fastest job, but I haven't figured out a better way of doing it. I just had to use a lot of care because the bit eats into the backerboard faster than the mortar, though the resulting grooved surface doesn't result in any problems, and probably help in adhesion of the re-application. It's also a good bit for cleaning up exterior stucco slop. As for value, I can buy 2 or 3 Harbor freight bits for every Dremel bit, but the HF bits have not only the breakage problem after about an hour of use, but also wear a bit more quickly and don't have the squared-off corners to get into the grout corners (where a wall meets another wall, or where a wall meets a horizontal surface. If it weren't for the corners, I'd probably give this a 4-star rating (due to usefulness for value). For instance, if you're re-grouting an entire flat wall or floor, use there's money to be saved by using HF for most of the work, and this bit for the tight areas.

Excelente calidad y muy eficientes, precisión indiscutible…😁👍

Did the job

Genial super 👍

works great on grout between tiles.

Cumple perfecto