TUNGSTEN NEEDLE

Pure tungsten needle is needle made of the material of pure tungsten, which is a very hard and steel-gray metal that is brittle and hard to work. However, if made pure enough, although tungsten retains its hardness (which exceeds that of many steels), tungsten needle becomes malleable enough that it can be worked easily. Tungsten needle can be worked by forging, drawing, extruding or sintering... Tungsten needle, made of pure tungsten with bright and smooth surface, is brittle and hard, but can be worked by forging, drawing, extruding or sintering.