The Wood and Metal blade family is designed for demanding cutting in wood, eve, with embedded nails, but it can also be used for thick metal materials. Virtually unbreakable Sandflex® bi-metal blade for all materials and types of cut. Version 1: Slope shaped (SL) Bi-Metal blades with precision ground teeth are a series of thicker blades with a narrow nose that makes it accessible in narrow places but still rigid and has a higher resistance to fracturing and bending, allowing straighter cuts. Version 2: Standard (ST) Bi-Metal blades with coarse precision ground teeth are a series of flexible blades with standard body that makes it more flexible and easy to bend into position. Packaging alternative 1: Retail packed either in -2P = 2 blades or -5P = 5 blades per pack. Packaging alternative 2: Industrial pack, -10P = 10 blades or in big industrial pack -100P = 100 blades per box