- This page is about the Invar Gear added by Factory Tech. For other uses, see .
The Invar Gear is an item added by Factory Tech. It is crafted in a Metal Cutting Machine. The Invar Gear is a consumable for Factory Tech Machine Maintenance. It is a direct upgrade from the Iron Gear, lasting 50% longer both in terms of minimum lifetime and break chance. Additionally, it makes any machine it is in work 20% faster.