Olson 5 in. x 18.5 TPI Scroll Saw Blades, 6-Pack are versatile, general-purpose blades designed for making precise cuts in wood and plastic, as well as copper and other nonferrous, soft metals. Crafted from the finest spring steel, these blades ensure durability and accuracy for your scroll saw projects. They are compatible with machines requiring 5-inch pin end blades and work ly with brands like Sears Craftsman, Penn State, Delta, Ryobi, and all 15-inch and 16-inch imported scroll saws. Each pack contains six blades, measuring 5 inches long, 0.070 inches wide, 0.010 inches thick, with an 18.5 teeth per inch skip tooth design to provide clean, efficient cutting. Model Number: FR42401