Bosch 3-5/8 In. 11-14 TPI Flexible T-Shank Jigsaw Blades, 5PC feature bi-metal construction that ensures long life and enhanced flexibility. These blades are specially designed for cutting sheet metal and thin metals, both ferrous and non-ferrous, making them i for straight or curved cuts. The T-shank design provides maximum grip and stability, fitting 90% of all current jigsaw makes and models for versatile use. Model Number: T118BF