Yes, tungsten needles can be used for high-precision weighing applications. Tungsten is a dense and strong material with high tensile strength and hardness, which makes it an excellent candidate for precise weighing instruments. Tungsten needles can be used as the measuring component in microbalances, which are highly accurate weighing devices used in laboratory settings for weighing very small quantities of substances. Tungsten needles can also be used as a probe in scanning probe microscopy techniques, such as atomic force microscopy, which can be used for high-precision measurements and imaging at the nanoscale.
