a few new guy questions

[No Sights Needed]

I just started on my first knife and i was wondering how to yall get the the pitting in the blade. also i seen some of you blue the blade to get the vintage rough worked look. can someone shed some light cause im lost in the sauce.

[sticshooter]

The pits are from rust. Most knives with the pitted looks are from old sawblades.<><

[theunluckyhunter]

come on stic, you dont know anything about pitting on blades!