The Field Tool Supply Reciprocating Saw Blade is 6 inches long with a 6 TPI (teeth per inch) design, optimized for aggressive cutting. This pack of 5 blades is constructed from high-quality steel, ensuring strength and longevity. The 6 TPI configuration is perfect for cutting through thick materials like wood and metal, making it a versatile choice for various applications. Designed to fit most reciprocating saws, these blades are ideal for both professional contractors and DIY projects, providing reliable performance and efficiency.