Expensive, but such a great productI've gone through about 5 of these in the past year with work on grout removal and grinding/cleanup work on basement slabs and preformed concrete foundations. I used them with my Bosch Oscillating tools and although they are expensive, they work really well and certainly get the job done. The only issue I had was when using them to remove a modified grout in a shower pan. That grout was harder than anything I've ever encountered and it wore these blades out very quickly. Also, if you're trying to use these to cut through stones in concrete, you'll have excessive premature wear on the blade. Otherwise, they are fantastic for many different applications.
by YouBigDummie