Made up primarily of tungsten carbide (WC) particles bound with a metal binder, such as cobalt, cemented carbide incorporates the toughness of tungsten with the toughness of other steels. The make-up of cemented carbides can be tailored to fit particular applications, leading to the production of ranges like YG15, yg6, http://lideritv.ge/index.php?subaction=userinfo&user=drumriver2