the "ftc" you refer to is more accurate called the "hts".
it's merely the code what US customs uses to apply the specific duty rate to items that are imported. In this case, the HTS you are inquiring about is 8204.11.0030. This means it resides in Chapter 82, heading 04, subheading 11, tariff rate 00 and statistical suffix 30. this only means that on the customs entry, 8204.11.0030 will be listed which covers hand operated wrenches and parts thereof.
You would need to look at the customs entry itself (which gear wrench isnt going to give you) to determine if they are claiming any free trade or preferential duty programs which could help you determine the country of origin.
It's confusing stuff.