YL10.2 high bending strength and good wear resistance, suitable for low speed rough turning and milling heat-resistant alloys, titanium alloys, also can be processed glass, steel, production processing PCB micro drilling. Tungsten steel products, about 18% of tungsten, tungsten carbide steel, also known as tungsten alloy. Vickers hardness for 10K, second only to diamonds. For this reason, tungsten steel products (commonly tungsten steel watches), with easy to be worn. Commonly used in the lathe tool, impact drill bit, glass cutter, tile cutter on top of hard afraid of annealing, but brittle. Are rare.