Optimized for specific application. Shatter-resistant, bi-metal design provides the flexibility and durability single-metal blades can't. Applications: non-ferrous & thick metals, nail-embedded wood, plastics, & composites.Power Blast Technology strengthens the blade to reduce breaks and increase durabilityPatented T2 technology reduces cutting force on each tooth and optimizes chip removal to allow efficient cutting in the widest range of materialsMinimizes friction and heat build-up to handle the widest variety of metal materials providing an optimized cutting experience