The Universal Fit OPEN-LOK Oscillating Multi-Tool HCS Wood Blades are made from premium high carbon steel with edge ground teeth. These features provide you with optimal cutting performance in wood, PVC, drywall, and other soft materials. This Milwaukee blade delivers faster cuts than the previous generation of high carbon steel blades with more teeth and an increased 1-3/8" cutting width with a deeper plunge cut. These MILWAUKEE Multi-Tool Blades are designed and made in the USA with global materials. Available in 1-3/8" and 2-1/2" widths in 1, 3, or 10 packs.