Freud DS0414BF Diablo Bi-Metal Demon 4-Inch 14/18-TPI Reciprocating Saw Blade Blade features Diablo's liquid metal technology which thru a sintering process liquefies and forms the edge under high temperatures for unmatched durability The Perma-Shield non-stick coating allows for less heat, gumming and corrosion make these blades out perform standard blades four times These blades deliver four times the cutting life of standard reciprocating blades in a metal cutting application. 3/32 to 5/16-Inch thickness This all adds up to more cuts for your buck