Imperial Blades 5SC400 - 3 Inch Circular High Speed Steel Universal Oscillating Saw Blade. Fits the Fein SuperCut. This five pack of HSS blades in our line of premium blades is designed for wood, drywall, metal and plastics. Popular uses for this blade: Cutting through harder woods, fiberglass, metals, 20 guage sheet metal, drywall, carbon fiber, etc. 18 TPI (Teeth per inch). Blade dimensions: 3 1/8 inch wide x 1 1/16 inch plunge depth. 5 Pack