Choosing the right auto-darkening helmet can be frustrating. Here are some tips in selecting a model that will work for you. Typically, all auto-darkening helmets range from shades of 9 to 13 allowing you to use the helmet with all processing including MIG, TIG, STICK welding. One feature that you may want to insure comes with your welding hood is the grinding mode, which will allow your lens to be set at a lighter share for grinding and plasma cutting applications!