1 comb leaves about 3/4 inch. #1.5 leaves about 5/8 of an inch, and a #2 leaves about 3/8 of an inch. the longer comb sets are more varied by who makes them. for example, a Romani C comb leaves about 13/16 of an inch, while a Laube C comb leaves 1 1/2 inches. but the 1, 1.5, and 2 combs are...