LENOX 20178-9114R 9" 14TPI LAZER Heavy Duty Metal Cutting Bi-Metal Reciprocating Saw Blade - 5 Pack Each saw blade uses T2 technology for longer blade life and faster cutting These metal saw blades have a reinforced tooth design that is optimized for higher performance Reciprocating saw blades cut straighter and wider than conventional blades Great for cutting structural steel and most other metals between 3/32-inch and 3/8-in 14 TPI