Tungsten is known for its high melting point and hardness, which makes it more difficult to machine than other materials such as steel or aluminum. Tungsten is also more brittle than other metals, which can lead to cracking or chipping during machining.
However, tungsten can still be machined using specialized techniques and tools, such as diamond cutting tools or electrical discharge machining (EDM). EDM involves using electrical sparks to erode the material, which can be useful for creating intricate shapes or features.
Overall, while tungsten is more difficult to machine than some other materials, it is still possible to produce tungsten needles and other components with the right techniques and equipment.
