Cutting tools for drilling, mining and construction often incorporate the use of tungsten carbide. These are undoubtedly the biggest markets for tungsten carbide, accounting for around 60 percent of its use. The use of this material in jewelry is becoming popular. Everything from rings to necklaces can be fashioned out of tungsten carbide. Tungsten carbide is also used on the tips of trekking poles and as spikes on snowmobile equipment. It is also used in ball point pens to align the roller ball with ink. Filaments from light bulbs are made out of tungsten because of its resistance to heat.
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