I have many friends
Some of which you know
I know sans, but not papyrus
Sometimes people think I can be Italian
But in reality I can only be quite loud
I excel in many things
And can hammer to a point
I know I am being quite wordy
But at least I am not innumerable
What am I?
The last line refers to another of my kind
I am not a font or a symbol of any kind.
Response to close votes.
This riddle is not too broad. 90% of the answers are repetitions of "font", which I specifically said was not the answer in comments. Please do not blame me for duplicate answers.