Tungsten Carbide grit welded to the steel blade.  When a normal hacksaw blade struggles use Perma-Grits Hacksaw Blade.  Fits a standard 12″ Hacksaw frame.  Designed to cut the tough materials, Steel cable, Hardened steel, Tiles, Ceramics, Marble, GRP, Carbon Fibre, Glassfiber, Plastics, Polystyrene etc.

Not high tensile steel, so won’t snap!