How do you cut a bald fade?
Start with the modified standard clippers with the blade length as short as possible. This will allow the clippers to cut to a smooth balded look at the back. You beginning by cutting from the nape of the neck up to the half crown (the half crown is midway between crown & nape of the neck. You cut against the way the hair grows.
Then at the half crown you need to move the lever slightly apart to create a smooth blended look into the rest of the hair. Gradually lengthen the space between the blades, so it fades to a longer cut as you move up to the crown.
You may want to switch to the fading clippers part way up the back of the head. Then you will either continue using the fading clippers or switch back to the regular clippers with the guard in place for the top of the head.
Hope that helps.
http://www.barbertips.com is a great site to teach you how to cut a bald fade.