EWLa-2 x 1/16in X 7in X 10 Pack (2% Lanthanated) tungsten electrode (20/EA Master) (Sold by the pack of 10 sticks)
General purpose electrode used for both AC and DC currents using inverter or transformer based constant current power sources. 
Good for low-alloyed steels, non corroding steels, aluminum, magnesium, titanium, nickel and copper alloys. 
Very stable tip geometry, runs cooler than 2% thoriated with longer life, low to medium amperage range.