Diablo Steel Demon, 2 Pack, 9" 20/24 TPI, Diablo Steel Demon, Reciprocating Saw Blade, Full Body, Specifically Designed For Maximum Performance In Metal Demolition Applications, Bi-Metal Ultra Hardened Cutting Edge, Non-Stick Perma-Shield Coating, Thick Demolition Body Blade, Dual Tooth Design Features A Double Tooth Configuration With Small Gullets For Faster Material Removal & Extra Durability, For Cutting Steel & Metal Composites.