The description says "tungsten carbide" as the material. It's actually a shaped steel plate with teeth that are pounded into a surface similar to a woodworking rasp. This product does not contain any material resembling tungsten carbide. Any claim that it contains carbide mimics other manufacturers and is intended to be misleading. This item is functional and useful for limited use but not intended for long-term use. It's 1/4 the price of a quality carbide tool and lasts 1/4 longer.