iablo Steel Demon high-quality blades are designed for maximum performance in general-purpose (nail-embedded wood, metal and plastic) applications. Bi-metal technology delivers up to 4X longer life than standard blades. Demolition body for straighter cuts. Tip design enables fast, easy plunging. Patented variable tooth technology provides faster cuts with less vibration. Heat treatment creates an ultra-hardened cutting edge for durability. Perma-SHIELD™ nonstick coating protects blade from heat, gumming and corrosion.