Imperial Blades One Fit 1-1/4" Japanese Tooth Hardwood Blade, 10PC (IBOA220-10) is composed of high carbon steel (HCS) for medium-duty wood applications. The double row, triple-ground Japanese tooth configuration is designed for up to 2X faster cuts than standard Imperial wood blades. Specifically engineered for precise, clean cuts in Hardwood, Wood, PVC, Drywall and other soft materials. Popular projects include undercutting doors for tile or flooring installation, creating cutouts for floor registers and trim work. Not designed for metal contact. One Fit anchor fits majority of non-Starlock multi-tools: Milwaukee, Ridgid, Ryobi, Bosch, DeWalt, Dremel, Fein, Makita, Rockwell and more.