[Welshman]

I’m very new to drawing . I’m into my 60s but I want to give this a shot. I have a lot of different graphite pencils but was thinking of getting some Mexicali ones as well. They all seemed to be marked a mm size instead of 2B4B etc. Is there any relation to these 2 ways
Thanks in advance

 

[3Eggs]

Real drawing pencils and leads are designated by lead hardness/softness (H,F,B,2B,.....6B, etc.) If you're serious about drawing , get and use only pencils or leads that have hardness/softness designations.