Diablo's Amped™ Steel Demon® Starlock carbide teeth oscillating blades feature application specific designs that deliver extreme durability and great cutting life in metal cutting. High-performance TiCo™ hi-density carbide teeth deliver an unmatched up to 50X longer cutting life versus standard bi-metal blades. An optimized blade and tooth design, along with black I.C.E. (Industrial Cooling Element) coating protects cutting edge against wear for extreme durability and longer blade life. Tool-free quick change interface fits Fein and other Starlock tools; also compatible with non-Starlock multi-tools.