Zero is as short as it gets but doesn't beat a razor.
IMO the #0 is better than the #1, but the razor is even better than the #0.Experiment with the clipper settings and then with the razor too and see what you like best.
Hi guys! I'm new here but not to the bald look. Mother Nature and genetics took my hair at 25 and I'm 60 . I tried the longer look and I looked like a scarecrow. I've been shaving or using the #1 or #0 look for a good 25 years and would never think of having my "cul-de-sac" even an inch long. My advise is to experiment like the rest of the guys wrote, find a length to your liking and stick with it.