Bionso 4 Pcs Oscillating Diamond Multitool Blade Set Mortar Cutting Saw Blades for Grout Removal and Tile Semicircle Blades Fit Dewalt Worx Rockwell Milwaukee Makita Bosch (65mm Semi Circle Blade)

FANTASTIC, saved me a lot of hard work and sliced fingers trying to removed dirty grout from between bathroom tiles. Cut the job time in half if not more would definitely recommend to any competent DIYer having to regrout tiling.

Half round ones waste of time the T shape is great fast removal of grout just get them ,,,if you have wide 4-5 mm grout put 2 together in your Multi Tool ..took 3hrs removed 6m2 of grout in a bathroom floor

Really useful for clearing large area of excess tile adhesive around the tiles before grouting. Be careful when using , so not to chip the tile edge. Worked really well and a lot faster than using a hand grout removal tool. One blade was all that was needed for a 14m2 room and still had a lot of life in it.

Cut the tiles quick and easy money will spent. Would buy again

In my work as a handyman there are many differnt things I use my multitool for, not simply plunge cuts into wood or plaster board: shaping, grinding, hacking, sanding and scoring are all things that I do with it to get the myriad jobs done. For the most part in the past I have tended to use carbide blades for the more uncinventional stuff although I have dabbled with diamond abrasive blades but usually find the price/longevity ratio has been a bit expensive with the cheaper diamond blades losing their abrasive too rapidly.I'm happy to report that these blades are on the whole much better than the cheaper end of the diamond spectrum that I have used so far. Yes, the diamond does wear off fairly quickly if you go too hard into harder materials (old concrete, volcanic stone for example) but if you turn the speed down a little and go gently things last longer (like in various other aspects in life). On softer materials like plaster or mortar these blades are really pretty decent they cut well and suffer little immediate damage to the grit.One of the mainstay jobs for these blades as others have noted is grout removal which comes under the slow and steady approach and both of the blade types are OK for this, yes they do wear down but if your careful I'd say you could get a smallish shower with 100mm tiles ungrouted with a pack of 4 of these blades, assuming the hardness of the grout is what I would consider average.The main issue I have with these blades is that the metal they are made from is relatively light and they dont feel as robust as they might - not a huge problem for me but if you decided to go in too hard deforming the blade mau well be a possibility.In the long run, while I wouldnt fully convert to the diamond abrasive from carbide for this style of blade they are certaily ones that will always be in my multitool case for quick and more aggressive jobs where the cutting power of diamonds makes life that bit easier. I'd recommend these blades in general but add that a fair bit of restraint is required to get the best performance out of them. The little box they come in is very handy and they work well in both my Milwaukee 18v (old style) and 12v (old & new style) multools

Product looks perfect but does Not fit the Bosch multi tool

I was hoping to use this to clear up grout to redo the bathroom but they're too thick for that - they work better on floor tiles. I have however been able to try out with a slab that needed a notch taken out and cutting some mortar to release a brick for a new catflap and they have held up well. I like the choice of shapes and the curved leading edge which definitely makes it easier to start a cut neatly and would have worked for the grout if the tiles weren't so close together.I'm using with a Ryobi one multi tool and they fit and work perfectly. I have only used for a few small jobs but am confident they will last for a decent length of time.

Works well with my dewalt multi toolGood material