All crafting and artisanry using this skill follows the typical Tradecraft mechanics (including Specialization). Such practices typically use some form of Utility (tool, kit, workstation) to fabricate items.
Frame of Reference: All Skills are bound by the character's Setting (physics), and the details that their culture/society's Science (gathered by Technology), direct experience, and/or collective Records are capable of revealing. A character may not be able to apply their full measure on a different world, with different species and tools.
i20™ > A single Result Check is made for an Activity to determine Success or Failure and degree. The GM can { } Narrate it, and players may request an appropriate impact when anything other than a basic outcome is indicated. Note that checks & attacks made without proficiency can only apply an Attribute bonus no greater than the character's Proficiency Bonus.
Each specialty has its own specific set of materials and tools. Some are shared with other related specialties, but the exact Utility Set is unique.