Half Moon Carbide Grout Remover Blade Quick Release Universal Fit Multi Tool Oscillating Multitool Saw Blade for Craftsman Bolt-on Rockwell Hyperlock Shopseies Universal Fit Porter Cable Black and Decker Bosch GOP Dewalt Tool Free System Carbide Semi Round Carbide Blade good for Grout Remover Fit Most Quick Release system as well as old Hex Screw system fit in Porter Cable, Rockwell Hyperlock, Bosch , Black and decker, Craftsman Bolt-on 20V Please check product description for model detail Not fit in Dremel Quick release system MM40 MM45