Teeth configuration: 24 TPI, optimizes chip removal Material compatibility: Designed for cutting thin metal OEM#: 20580810RRECIPROCATING SAW BLADE, 8.00 IN. L X 0.750 IN. W X 0.050 IN. THI Features include: bi-metal construction, 8% cobalt edge, precision-milled teeth which in return make them shatterproof, high wear resistant with a more aggressive cut. Lenox Blades Lenox Tools LENOX 20433-24RKG 24 Piece General Purpose 6"" Cutting Lenox 3x3 Saw Blades Reciprocating Saw LENOX Tools Bi-Metal Reciprocating Saw Blade, General Purpose, 6-inch, 24 TPI, 25-Pack (20496B624R Product Description LENOX 20496B624R RECIPS B624R 6 X3/4X035X24 25/PK From the Manufacturer Lenox blades cut through tough materials including nail-embedded wood and retain tough sharpness longer than its competition. Power Blast Technology Increases Blade Life: High speed blasting along the cutting edge strengthens the blade to reduce breaks and increase durability