does clockworck wrench does something?
Viewing post in Gain Factory Reloaded comments
Clockwork Wrenches basically limit the amount of items that go into a machine. They're useful for items that have similar crafting recipes to other items so that you don't put in too many items.
It's kind of hard to explain but basically they aren't used in any crafting recipe which makes them somewhat useful (but I usually just insert silicon rock because 99% of the food crafting recipes don't use them)