Imperial blades-iboa730-1 made in the U.S.A.-one fit segment boot diamond blade 1-pk. Features our one fit system allowing our blades to fit 98% of multi-tools/oscillating tools on the market. This diamond blade in the "boot" design will remove tough grout from between tiled surfaces. The design allows aggressive cutting without damaging the tiles. This long-lasting blade enables continuous work on large projects. For commercial applications such as cutting out marble and trass concrete joints. Also for sinking ducts in plaster, brick, pumice and honeycomb stone as well as autoclave aerated concrete. These premium, long lasting blades are designed specifically for harder grouts.