Diablo’s 114 Starlock Carbide Oscillating Blades Feature Application Specific Designs That Deliver Extreme Durability And Superior Cutting Life In Metal Cutting HighPerformance Carbide Teeth Deliver An Unmatched Up To 50X Longer Cutting Life Versus Standard BiMetal Blades An Optimized Blade And Tooth Design, Along With Black ICE Industrial Cooling Element Keeps The Teeth Cool And Build Up Free For Fast, Clean Cuts Tool Free QuickChange Interface Fits Fein And Other Starlock Tools Also Compatible With NonStarlock MultiTools