MTP Tm 27 Sanding /Fine Wood Blade Quick Release Universal Fit Multi Tool Oscillating Multitool Saw Blade for CraftsmanBolt-on Rockwell / Fein Multimaster Porter Cable Black and Decker Bosch 21+6 sanding kitsl/Wood Saw Blades w/ Quick Release Arbor Manufacturer by MTP 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 (adapter need)