I use a #4 on my Wahl on most of the beard, except the stache and below the lip. I'm trying to get those areas to grow longer to give a more dense look. When I do have to snip out a wild hair here and there, I use a small sissors that came w/ my moustache comb for a couple of bucks at the pharmacy. Very handy little comb--I can brush the stach to the sides before eating and it makes it easier not to accumulate too much in the stache.