Thin set removal and rock fountain demolition Tile Removal. I used this with the 328 RC for demolition . I found that sharpening it up every once in a while with a grinder helps out a lot. I went to [@] and bought some other bits. The bits are priced better at CPO . If you can get free delivery you could save some money. I ordered with the hammer and got quick delivery in 3 days it was in bottom of box.