The Field Tool Supply Reciprocating Saw Blade measures 4 inches in length with a 14 TPI (teeth per inch) design, ideal for cutting through various materials. This pack of 5 blades is crafted from high-quality steel, ensuring durability and longevity. The 14 TPI configuration is perfect for making clean cuts in wood and other soft materials. Each blade is designed to fit most standard reciprocating saws, making it a versatile addition to your toolkit. Whether you're a professional contractor or a DIY enthusiast, these blades will enhance your cutting efficiency.