Gyromatic Micro-Adjustor

The Gyromatic Micro-Adjustor (a screwdriver) is a tool that was invented by Gelbin Mekkatorque and used by engineers to make a variety of items. Like a Blacksmith Hammer it is not consumed when crafting an item.

The Gnomish Army Knife has an in-built Gyromatic Micro-Adjustor (and whole bunch of other stuff).

Source
This item is created with Engineering (175); taught by trainers.