If they cut any faster you would be done before you started. Equalizer serrated blades are made of spring steel and sharpened with a unique double serration method. Each serration is itself serrated. This sharpening method gives our new Equalizer blades a smoother and faster cutting action than ever before. These blades will fit any Equalizer tool: Equalizer GT, Excalibur, Equalizer Magnum, Thor, Equalizer 12V, and Equalizer Freedom.