Milwaukee Universal Fit OPEN-LOK 3-Piece Wood Cutting Oscillating Multi-Tool Variety Pack features an assortment of the next generation oscillating blades for optimal cutting performance in wood, PVC (polyvinyl chloride), drywall, and other soft materials. The oscillating wood blades are designed with aggressive, precision ground teeth for fast cuts in wood, drywall, and PVC. A 1-3/8 In. HCS (High Carbon Steel) end-cut blade, a 2-1/2 In. HCS end-cut blade, and 3-1/2 In. HCS segmented blade offer versatile cutting to ensure the right blade for the right cut.