Uh, yea, that quest is pretty horrible on the translation part. The spine doesn't even have a name, lol.
Anyway, supercz1118, you can use the Tweezers in Sunset Desert, close to the ...plucked bears? Or whatever the name was. You know, the first mobs you encounter there, the cacti. Not sure if it works anywhere there, but when I run to the place from the camp I use it just on the open field before any mobs are in range.