Lenox 5 PC Thick Metal Blade 1" 9" 10 TPI 3/16" to 1/2" USA Made NEW Best for extreme metal cutting. Reinforced tooth design ensures higher performance in the most demanding jobs. A wider, thicker body than conventional blades delivers whip-free cuts that stay straight and smooth. Lasts up to 45% longer than competitors' blades. Shatter resistant, bi-metal design provides the flexibility and durability single-metal blades can't.