Review on HEMUNC 5pcs Mixed Universal Carbide Oscillating Tool Blades Set - Quick Release Saw Blades Accessories Kit for Tile Grout, Mortar, Concrete, and Masonry by Jay Liu

Have started using them for grout removal. They remove joints. I thought about it and switched to my brand and found that it removes grout much more effectively. So yes they work but you get what you pay for. When you consider that this 4-pack costs less than a brand name blade, it does indeed. Big. I wouldn't pick her for a big job, you will lose the value of the extra time put in.