Those who work with TIG welding know that the tungsten electrode is an important part to achieve the desired finishes and thus be able to perform optimal welding work. Tungsten is the metal that makes up the filament of old incandescent lamps (the common focus) and has the characteristic of melting at a very high temperature (3410ºC). This quality allows the tip of the electrode to "survive" the welding process, since iron, for example, melts at 1500ºC. Now, it is important to use rectifying equipment for these electrodes for the correct application of welding.
If you allow me to make a recommendation, on the website https://tungstengrinder.net they have the best in terms of equipment and machinery to sharpen the electrodes and thus achieve the expected finishes.