Speaking of tungsten I really like this small 1x30 Harbor Freight belt sander (PN 2485) for sharpening my tungsten rod. I will be mounting this little guy on top of my homemade welding cart. Again, make sure that you don’t clean the base material on whatever you decide to sharpen your tungsten with. You can cross contaminate the weld and introduce porosity into the tungsten and weld. I also used a Harbor Freight cordless drill (PN 67024) to spin the tungsten. Some tungsten rods have radioactive material in them. Make sure to use a dust mask and keep the dust away from your clothes.