The force infuser is an item from the DartCraft mod. It is used to imbue DartCraft items with various effects. It requires an upgrade tome, liquid force (obtained by placing force gems in the infuser or in a forestry squeezer), and Buildcraft MJ to run. The upgrade tome determines the tier of effects which can be infused, and allows higher tiers through use.
Created by right clicking a block of obsidian with a Force Rod
NB: A force tool can be only one time enchanted in the force infuser, but other enchants can be added in an Advanced Enchantement Table (you can have a force sword with sharpness X in the force infuser and then enchant it again in the Enchantement Table)