Diablo, Steel Demon, 4", 8 Tooth, Thick Metal, Carbide Tipped, Reciprocating Blade, Perma-Shield Coating Protects The Blade From Heat, Gumming & Corrosion, 1" Demolition Body For Straighter Cuts With Less Vibration, Ideal For Cast Iron, High Strength Alloy, Stainless Steel, Thick Metal 3/16" To 1/2".