LENOX Tools LAZER Reciprocating Saw Blades, TPI, 9-inch, 14 (201789114R). T2 tooth design delivers up to 2 times the life and makes cutting heavy metal faster and easier. A wider, thicker body than conventional blades delivers straight, smooth cuts. The reinforced tooth design ensures higher performance in the most demanding jobs. Bi-metal blade technology welds two metals together for a blade that stays sharp 3 times longer than conventional blades.