The Diablo steel demon carbide strip reciprocating blades are designed for extreme thin metal cutting including high strength alloys, cast iron and stainless steel. This high performance carbide strip blade delivers unmatched 20 times longer cutting life than standard bi-metal blades in thin metal cutting applications less than 3/16 inch. Ideal for cutting cast iron, stainless steel and other high strength alloysSpecially formulated carbide for increased hardness to deliver longer cutting lifeSolid carbide creates full barrier to heat resistance for maximum durabilityPerma-Shield non-stick coating for less heat and frictionCarbide strip teeth are milled to perfection for smoother quality cuts20 tooth8 in.