IMPERIAL BLADES MM550 2-1/2-Inch Wavy Universal Oscillating Knife Blade Made in the USA Fits 27 brands of Oscillators: Fein, New Sonic rafter X2, Bosch, Mastercraft, Dremel, Ridged, Milwaukee, Skill, Craftsman and many more Adapters available for Rockwell/Worx Sonic rafter, Porter Cable & Fein SuperCut