Festool 204272 HS 105/1 Bi/5 Steel/Stainless Steel Cutting Jigsaw Blades, 5-Pack includes five high-quality jigsaw blades designed for precision and durability. These 4-1/8" (105 mm) long blades feature a basic rippled design and are made from HCS Bi-Metal, making them for cutting both non-ferrous metals like aluminum and brass, as well as steel. With 19 teeth per inch (TPI), they can cut through materials up to 1-9/16" (40 mm) thick, providing efficient and clean cuts. These blades are compatible with Festool Trion and Carvex jigsaws, ensuring reliable performance for your metal cutting needs. Manufactured in Germany, they excellent quality and longevity. Model Number: 204272