The heavy metal blade family is designed for demanding metal cutting in thick materials.Virtually unbreakable Sandflex® bi-metal blade for all materials and type of cut.HSS toothing with 8% Cobalt on a spring steel back on the Bi-Metal blades ensure extreme durability.Version 1: heavy standard (HST) bi-metal blades with precision ground teeth are a series of extra thick blades.Wider body that makes it more 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 easier to bend into position.0.9 mm to 1.3 mm thickness.8/12 TPI to 18 TPI.150 mm to 300 mm of length.Packaging alternative 1: retail packed either in -2P = 2 blades or -5P = 5 blades per pack.Packaging alternative 2: industrial pack, -10P = 10 blades per box