Duo Setting Tool  

 

Buy the solo setting tool from Noirin Khalen in PoK by the big bank for under 6pp and you just combine it in your reinforced jewelers kit or any that it will work over and over until you get the tool you want, whether it is duo, trio, pearl, marquise. One setting tool transformed to any cut tool you need in your jewelers kit.

Combine Solo Setting Tool once in Reinforced Jewelers Kit to make Dou. Solo is purchased in Abysmal Sea.