Olson 5 in. Metal Piercing Jewelers Saw Blades, 12-Pack feature extremely fine teeth designed for precision cutting. Crafted from hardened and tempered steel, these blades are i for sawing metal and other hardened materials. Each blade measures 5 inches in length and has regular teeth, making them for detailed work commonly performed by jewelers. These blades are intended for use with hand-held frames only, ensuring accurate control and delicate handling during piercing tasks. Model Number: