Blade is made from electroplated diamond and is designed for removing hardware grouts. Efficient shape allows for aggressive grinding without damaging the tiles. Long-lasting blade enables continuous work on large commercial projects such as cutting out marble and truss concrete joints as well as sinking ducts in plaster, brick, pumice, honeycomb stone, and autoclave aerated concrete. Features ONE FIT universal system allowing blades to fit most multi-tools/oscillating tools. Adapter included to fit Dremel Quick Release & old Rockwell.