This Engineer-only hat will be very handy since it will boost your tradeskills and also provide some protection. Only an engineer should do the creation process since the final product will only work for that profession, and it will also become a NoDrop item. Another nice bonus is that the Repairman's Hat is a leveling item, which means that by right-clicking on it will increase the QL. The basic hat will be QL 20 and it can be upgraded to QL 50.
To get the Salesman's Hat you first need to travel to the outpost of Hope in Mort and purchase it from Zoftig Blimp. The Field Quantum Physics All-Purpose Tool, Nano Programming Interface and Inactive OT Metamorphing Liquid Nanobots can be found in general shops. You can find the Notum Chip or Notum Fragment from boss mobs in missions or regular Rubi-Ka mobs.
Now it's time to make your new Repairman's Hat, which is just four easy steps: