Festool 204345 S 155/W/3 Insulation Building Materials Cutting Jigsaw Blades, 3-Pack a set of three high-quality jigsaw blades designed specifically for cutting soft insulation materials, cardboard, and polystyrene. These blades are crafted from wave-edged High Carbon Steel, ensuring durability and precision in every cut. Measuring 6 inches (155 mm) in length, they can efficiently cut through materials up to 4-11/32 inches (110 mm) thick. Compatible with Festool Trion and Carvex Jig Saws, these blades provide reliable performance for your insulation and building material projects. Made in Germany, they combine excellent craftsmanship with practical design for professional results. Model Number: 204345