Copper tungsten thread tapping use for ED due to it unmatched wear resistance, together with very well in sharp corner and machined without burr issues associated with copper.
More details of copper tungsten thread tapping electrode, please visit http://www.tungsten-copper.com/copper-tungsten-thread-tapping-electrode.html
Advantages
Maturity press- sinter- infiltration process without porosity issue.
High electrical conductivity gets rapid cutting speed.
Different tungsten ratio product available depends on the demanding.