The Milwaukee® universal fit OPEN-LOK™ 1-3/4 in titanium enhanced bi-metal blade 3 PK is designed for oscillating multi-tools. These multi-tool blades for metal are titanium enhanced and made from premium high-speed steel. The 1-3/4 in bi-metal blade has a slightly narrower cutting width than most standard bi-metal blades and a slightly longer blade body, designed for cutting soft metals, wood, nails, PVC and drywall. it uses a combination of tooth form and material to offer better cutting performance in soft metals. These bi-metal multi-tool blades are designed and made in the USA with global materials. Milwaukee® Blade Set, 10-Piece End Cut Bi-Metal, Series: OPEN-LOK™, For Use With: Oscillating Multi-Tool, Specifications: 1-3/4 in, Black Oxide