How Do Clipper Guard Sizes Work?
Clipper guard sizes are numbered and correspond to the length of hair they will leave when attached to a clipper blade. The number on a clipper guard represents the length of the hair in eighths of an inch. For example, a #1 guard will leave hair 1/8 of an inch long, while a #4 guard will leave hair 4/8, or 1/2 inch long. The higher the number, the longer the hair will be left. It’s important to note that not all brands of clippers have the same size guards, so it’s essential to check the measurements before purchasing.