The Sonicrafter Tile Repair Kit includes:
Triangular Rasp - suitable for wood, plastic, hardened adhesives, thin set and masonry.
Purpose - Coarse grinding or rasping, aggressive material removal over larger areas.
Carbide Grit Blade - for grout, porous concrete and masonry.
Purpose - removing grout, cutting and shaping plaster, porous concrete and masonary. Flat on one side so you can cut into corners and flush against adjoining surfaces.
Diamond Grit Blade - ceramic and stone tile, backer board.
Purpose - scoring and cutting for precise fit.