These different lengths are what will help you achieve that gradual length transition that the fade is known for. Some clippers may also have a bracket setting. When you flip off the setting, the blades cut off about an extra ⅛ an inch (3. 2 mm), making it perfect for achieving lengths between those cut by guards.
Trimming the top of your head first may help you figure out your balance. Remember, it’s better to cut your hair longer at first because you can always go back and cut it shorter, but you can’t make short hair grow back quickly.
Base this length on your balance. If you’ve decided to make the top of your hair 2. 5 inches (6. 4 cm) high, then make sure that you don’t cut your long hair any shorter than that length.
The #2 guard will leave hair 1/4th an inch (6 mm) long. Another way to achieve a fade is to start with higher-numbered guards and create layers from the top down. This may help you if you keep cutting your hair too short.
When you are starting out, you may wish to experiment on one side first. Figure out the cutting motion and length you need to make the hair to correct rough spots.
A #4, for instance, will leave your hair ½ an inch (12 mm) long.
As you are learning, the haircut may not come out very well at first. You can try to correct it, or you can cut your hair short and wait for it to grow back so you can try again.
A friend can not only tell you when it’s time for a haircut, but can tell you where you need to make corrections after you cut your hair.