When you are Level 20, talk to Head Blacksmith Tapoy (Gludin) to become an Artisan. By l2hub
Steps from the game client
The First Blacksmith Test
Quest that must be fulfilled to change occupation to Artisan. The Dwarf Village Blacksmith Silvery tells you that to become an Artisan you must receive recognition from three Blacksmiths that have been Artisans for a long time. He asks you to go to the Abandoned Coal Mines and obtain 10 boogle ratman teeth and two boogle ratman leader's big teeth.
In order to take the second test, you must visit Blacksmith Kluto. You can find him at the blacksmith's shop in Gludin Village.
Errant to Pinter
Take the letter you received from Blacksmith Kluto to Blacksmith Pinter in Gludio Castle Town.
Missing Box
The item that Blacksmith Kluto commissioned from Blacksmith Pinter has been stolen by a Vuku orc fighter. Find the culprit and recover the stolen secret box. The thief can be found on Windmill Hill south of Gludin Village. Monster to hunt: Vuku orc fighter.