Carbide grit jig-saw blades cut extremely hard abrasive materials such as ceramic tile, cast iron, cast iron, thin masonry, stone, slate and marble. Cutting edge of Tungsten carbide particles are bonded to an alloy steel back. High heat resistance with no teeth to dull or ship for greater wear resistance and a longer tool life. Tungsten carbide grit blades offer superior cutting performance in masonry, ceramics, tile, plastic and steel plate under 1/2-Inch thick. Carbide grit blades never require resharpening.