Diablo, Demo Demon, 3 Pack, 12'', Carbide Tipped Fast Wood Reciprocating Blade, Pruning & Fast Clean Wood Blades Feature Aggressive Carbide Tooth Geometry For Unmatched 50 Times Longer Cutting Life, Faster Cuts & Increased Productivity In Pruning & Clean Wood Cutting Applications, Designed With Large Gullets & A Strengthened, Oversized Blade Body For Fast Chip Removal In Extreme Cutting Applications, Blades Feature Perma-Shield Non-Stick Coating To Prevent Gumming & Friction For Fast, Effortless Cuts In Some Of The Toughest Wood Cutting Scenarios.