LENOX Tools 210926108GR Gold Power Arc Reciprocating Saw Blade, For Thick Metal Cutting, 6-inch, 8 TPI, 5-Pack Delivers up to 2X longer life versus traditional straight LENOX reciprocating saw blades. The aggressive curved blade design optimizes the blade's angle of attack for faster cutting in a variety of materials. T2 Technology and a precision-applied titanium coating help dissipate heat, extending the life of the blades. Available for wood, metal, demolition, and extreme heavy metal cutting applications. 8 tooth per inch blades are best for use with the thickest metals. Made in the USA from global components.