As the middle length. It just depends on what you like. Remington Hc1094 Remington 14pc Haircut Kit Newegg Com The number 4 haircut is 13mm long. . Put together a hair clipper guide starting with a number 8 haircut down to a zero haircut and included a safety razor head shave. A number 4 guard is ideal for. Web This clipper size measures three-eights of an inch so its significantly longer compared to the size on number 1 or number 2 haircuts. The numbers on your clipper guards can be. Web A number 4 haircut is used to get 12 inch of hair. Now that you know your desired hair length and are sure about your face shape lets take a look at the top 10 haircut. Web Number 4 Haircut René Ranisch via Unsplash This haircut is applicable for a 12-inch trim as it leaves the right amount of hair on the scalp. What Length Is The Number 4 Haircut. Also known as the medium-length hair clipper it gives you ½ inch of length