Pack of 28 /Bi-metal / Japan / Fine Quick Release Universal Fit Multi Tool Oscillating Multitool Saw Blade for Craftsman 20v Bolt-on Mm20 Rockwell Hyperlock Shopseies 12v Universal Fit Porter Cable Black and Decker Bosch Dewalt Stanley 28- Wood /Bi-metal Blades ( 8 metal saw + 28 Wood Saw) 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