Diablo, 3 pack of 1-1/4" oscillating blades. Starlock carbide oscillating blades for metal. Diablo's Starlock carbide oscillating blades feature application specific designs that deliver extreme durability and superior cutting life in metal cutting. High-performance carbide teeth deliver an unmatched up to 50 times longer cutting life versus standard bi-metal blades. An optimized blade and tooth design, along with black I.C.E. (industrial cooling element) keeps the teeth cool and build up free for fast, clean cuts. Tool free quick-change interface fits Fein and other Starlock tools, also compatible with Non-Starlock multi-tools.