I was pleasantly surprised when this Weldmark Tungsten Chemical Sharpener worked. It works great, faster and safer than grinding tungsten electrodes. It only took me a short time to get the hang of using this chemical sharpener and in no time I had 4 electrodes sharpened and ready to go. The tips came out perfect with a nice taper and a balled tip instead of sharp point which is preferred for welding steel. I connected the ground to the electrode tip with the electrode sticking out about an inch or more. Then after the electrode gets red hot, disconnect the ground and dip into the chemical (looks like salt) repeatedly until the molten tungsten drops off the electrode and the electrode is sharpened to a nice taper. I was able to sharpen four new electrodes faster than I could have done it using grinding and there is no dangerous dust either so no need for a mask. Then I just removed the hardened pieces of the sharpener material (the process causes the chemical to clump) and ready to go again.