"The Diablo Demo Demon blade for nail-embedded wood features oversized demolition blade body that has increased height for straighter cuts with less vibration. Perma-Shield non-stick coating allows for less heat, gumming and corrosion. Freud's Tico Hi-Density Carbide Teeth deliver 10X the cutting life of standard reciprocating blades. TPI Teeth per Inch 6, Blade Material Carbide-tipped, Blade Size in. 9, Blade Type Demolition, Blades qty. 1, Blade Application Wood w/nail. 9in., 6 TPI"