Dremel, 3 Pack, Universal Dual Interface Oscillating Grout and Tile Blade. Universal dual interface directly fits all oscillating tools without the use of an adapter, *excluding StarLock, Compatible with Dremel, Bosch, Makita, Milwaukee, Rockwell, DeWalt, Fein, Porter Cable, Ridgid. Allows fast accessory changes. Includes MM501U Universal grout removal blade, MM610U universal flexible scraper blade, MM900 60-Grit Oscillating diamond sand paper. Works on a variety of materials, such as grout, thin set, adhesive, caulk.