... tungsten carbide ball: cemented carbide good quality: Used in geological prospecting, serves as drill bit in wind tungsten carbide balls:Materials: virgin cemented carbide, tungsten carbide, alloy and non-metal Used in ... for precision lathe are used in nonstop cutting of die-cast iron Semi-precision, ... , nonmetal materials, drawing of steel, non-ferrous metal and pipes, various drills for geology use ...