The Milwaukee Universal Fit OPEN-LOK 5-Piece Oscillating Multi-Tool General-Purpose Set provides users an assortment of top-performing blades in the most common cutting applications: metal, wood and nails, and wood. This blade set includes three 1-3/8 in. High Carbon Steel Universal Fit Wood Cutting Multi-Tool Oscillating Blade, one 1-3/8 in. Titanium Bi-Metal Universal Fit Wood and Metal Cutting Multi-Tool Oscillating Blade, and one 1-3/8 in. Carbide Universal Fit Extreme Metal Cutting Multi-Tool Oscillating Blade. The Milwaukee 16-piece SAWZALL reciprocating saw blade set features an assortment of metal cutting SAWZALL blades for a broad range of professional applications. The TORCH demolition metal cutting blades provide 5X blade life and facilitate tough cuts. They also feature GRID IRON technology for increased blade stiffness. The metal cutting blades feature TOUGH NECK ribs that strengthen the blade tang and minimize breakage. The recip saw blades in the set are ideal for a variety of professional applications including general use and demolition.