The forging hammer that Bai Zemin had crafted using a precious Rank 2 metal, Refined Crusher, was a Rank 1 weapon with considerably high physical and magical attack power. Thanks to this hammer, he was able to mold the hardness of a Rank 2 metal to his liking which with his normal old hammer would have been no different than an impossible task.
However, it was true that Bai Zemin could hardly be considered a blacksmith who was just getting into the world of the forge. His skill Blacksmithing of First Order maximum level was nothing when it came to real blacksmiths that had forging as their main profession and he didn't need to be told by Lilith for him to know that there were definitely people more talented than him out there when it came to forging equipment.
Even so, Bai Zemin had always been quite satisfied with his forging ability. He even managed to forge a Rank 3 sword with great physical attack power and excellent Options.