Freud DS0912AW Diablo Bi-Metal 9-Inch 6/12-TPI Reciprocating Saw Blade The new Diablo wood cutting reciprocating saw blades last up to two times longer than standard reciprocating blades These specially designed blades include a Variable Tooth Technology design for superior cuts and one-of-a-kind tip design for faster and easier plunging The Perma-Shield non-stick coating allows for less heat, gumming and corrosion Diablo's Bi-Metal Series reciprocating saw blades last up to two times longer than standard blades in wood and nail embedded wood applications