Without a clipper guard, you will get a traditional buzz cut.
Download What Do Barber Clipper Numbers Mean Pics. What do the numbers mean? A quick google search of what do the numbers mean on clipper guards yielded this response;
Haircut Numbers - Guide to Hair Clipper Sizes ... from atozhairstyles.com
Hair clippers for men professional hair cutting kit cordless trimmer with lcd display 250 minutes run time, 5 speed adjustment, 8 guide combs for barbers and stylists, opove x master. 0 = no blade as close to the head as you're going to get. Hairdressers may use clippers when they using clippers on wet hair can clog up the blade and motor, and can potentially break the machine.
Once the bug of doing your own haircut with clippers bites you, it won't let go.
Haircut numbers in millimetres and inches. Haircut numbers refer to the length of hair that will be left after the haircut. Without a clipper guard, you will get a traditional buzz cut. Don't worry, our charts are here to bring some clarity!