The Heavy Metal Blade assortment is designed for demanding metal cutting in thick materials. A practically unbreakable Sandflex® bi-metal blade for all materials and types of cutting. Version 1: Heavy standard (HST) bi-metal blade with precision-ground teeth is a series of extra thick and wide blades that make them stiffer and have a higher resistance to cracking and deformation, providing straighter cuts. Version 2: Standard (ST) bi-metal blade with coarse precision-ground teeth is a series of flexible blades with a standard back that makes them more flexible and easy to bend into the right position. Slope-shaped tip for various types of cuts. Packaging option 1: Retail packaging with -2P = 2 blades or -5P = 5 blades per package. Packaging option 2: Industrial packaging, -10 P = 10 blades per box